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Patent database
Espacenet (formerly stylized as esp@cenet) is a free online service for searching patents and patent applications. Espacenet was developed by the European
Espacenet
English engineer
228 "Espacenet - Bibliographic data". Worldwide.espacenet.com. Retrieved 12 January 2013. "Espacenet - Bibliographic data". Worldwide.espacenet.com. Retrieved
Richard_Deeley
British engineer (1854–1931)
2013. "Espacenet – Bibliographic data". Worldwide.espacenet.com. Retrieved 12 January 2013. "Espacenet – Bibliographic data". Worldwide.espacenet.com. Retrieved
James_Thompson_Marshall
Japanese inventor (born 1928)
link] "Espacenet - Bibliographic data". V3.espacenet.com. Retrieved April 8, 2015.[permanent dead link] "Espacenet - Bibliographic data". V3.espacenet.com
Yoshiro_Nakamatsu
English locomotive engineer
13 January 2013. "Espacenet – Bibliographic data". Worldwide.espacenet.com. 19 December 2012. Retrieved 13 January 2013. "Espacenet – Bibliographic data"
Thomas_William_Worsdell
American game designer (1932–2025)
in 1998. He died on January 21, 2025, aged 92. "Espacenet - Bibliographic data". worldwide.espacenet.com. Retrieved September 7, 2022. "Archived copy"
Howard_J._Morrison
Screen technology used for liquid crystal displays
image Inversion Effect) "Bibliographic data: US3834794 (A) ― 1974-09-10". Espacenet.com. Archived from the original on 8 March 2021. Retrieved 9 October 2013
In-plane_switching
Display that uses the light-modulating properties of liquid crystals
August 10, 2014, at the Wayback Machine, Epson "Espacenet — Bibliographic data". Worldwide.espacenet.com. September 10, 1974. Archived from the original
Liquid-crystal_display
Japanese electronic components manufacturer
"Stacked Bandpass Filter". patentscope.wipo.int. "Espacenet - Bibliographic data". worldwide.espacenet.com. "Laminated band-pass filter having an even number
Murata_Manufacturing
Scottish locomotive engineer
2012. "Espacenet – Bibliographic data". Worldwide.espacenet.com. Retrieved 13 January 2013. "Espacenet – Bibliographic data". Worldwide.espacenet.com. Retrieved
Robert_Urie
Swedish engineer
"Espacenet - Original document". Worldwide.espacenet.com. 1939-10-03. Retrieved 2014-07-22. "Espacenet - Original document". Worldwide.espacenet.com
Alf_Lysholm
Austrian philosopher and logician (1889–1951)
GB191027087A: Improvements in Propellers applicable for Aerial Machines, 1910 – Espacenet Wittgenstein Translations: bilingual translation with commented notes
Ludwig_Wittgenstein
English electrical engineer and inventor
ISBN 978-0262220644 "Espacenet - Bibliographic data". Worldwide.espacenet.com. Retrieved 23 August 2020. "Espacenet - Bibliographic data". Worldwide.espacenet.com. Retrieved
Kenyon_Taylor
Romanian engineer (1881–1965)
some other liquids "Espacenet – Original document". Worldwide.espacenet.com. 28 November 1916. Retrieved 25 July 2014. "Espacenet – Bibliographic data"
George_Constantinescu
Irish locomotive engineer, also working in Britain
pp. 7, 9. "Espacenet - Bibliographic data: GB191419269 (A) ― 1914-11-26". Worldwide.espacenet.com. Retrieved 13 January 2013. "Espacenet - Bibliographic
Richard_Maunsell
CEO from Ferrari
9 July 2007. Retrieved 7 October 2025. "Benedetto Vigna Result list". Espacenet. Retrieved 13 November 2021. ""IEEE Frederik Philips Award" recipients"
Benedetto_Vigna
Former British commercial vehicle manufacturer
Leyland L60 "Espacenet - Original document". worldwide.espacenet.com. Retrieved 16 April 2018. "Espacenet - Original document". worldwide.espacenet.com. Retrieved
Tilling-Stevens
American physician and immunologist (born 1959)
19, 2024. "Espacenet – search results". worldwide.espacenet.com. Retrieved January 8, 2021. "Espacenet – search results". worldwide.espacenet.com. Retrieved
Drew_Weissman
Medium for transmitting moving images and sound
2024. "espacenet – Original document". Worldwide.espacenet.com. Archived from the original on 24 February 2021. Retrieved 17 January 2012. "espacenet – Bibliographic
Television
Mexican American revolutionary and inventor (1850–1945)
Patent 1417196, "Wrench", on espacenet site and on google patents US Patent 873587, "Rail magnetic brake", on espacenet site and on google patents Windmill
Victor_Leaton_Ochoa
Plastic construction toy
patent GB529580 of 25 November 1940 by Harry Fisher Page of Kiddicraft". espacenet.com. 17 July 2010. Retrieved 17 July 2010.{{cite web}}: CS1 maint: deprecated
Lego
Scottish engineer
Caley828.co.uk "Espacenet – Bibliographic data". Worldwide.espacenet.com. 19 December 2012. Retrieved 13 January 2013. "Espacenet – Bibliographic data"
John_F._McIntosh
Protective medical device worn by an animal
Neck brace Rug (animal covering), or dog/cat coat "Espacenet - Bibliography data". worldwide.espacenet.com. Retrieved 2018-09-19.{{cite web}}: CS1 maint:
Elizabethan_collar
TV set with integrated Internet features
Japan Times "espacenet – Original document". Espacenet. Archived from the original on February 24, 2021. Retrieved January 17, 2012. "espacenet – Bibliographic
Smart_TV
Biomedical scientist
2000 "Espacenet - Bibliographic data". worldwide.espacenet.com. Retrieved 2019-02-28. "Espacenet - Bibliographic data". worldwide.espacenet.com. Retrieved
Ray_Iles
Valve gear for steam engines
www.gracesguide.co.uk. Retrieved 12 April 2026. "Espacenet - Original document". worldwide.espacenet.com. Retrieved 20 January 2021. Lines 35-50 of the
Joy_valve_gear
Kitchen tool for opening wine bottles
Museum". www.bullworks.net. Retrieved 2019-05-31. "Espacenet – Original document". worldwide.espacenet.com. Retrieved 2018-09-28. Engber, Daniel (14 March
Corkscrew
German engineer (1877–1945)
"Espacenet - Original document". Worldwide.espacenet.com. 1927-07-19. Retrieved 2014-07-19. "Espacenet - Original document". Worldwide.espacenet.com
Hermann_Föttinger
Swiss engineer (1901–1995)
2015. "Espacenet - Original document". worldwide.espacenet.com. Retrieved 4 September 2015. "Espacenet - Original document". worldwide.espacenet.com. Retrieved
Robert_Huber_(engineer)
Mechanism for controlling steam flow in a reciprocating steam engine
(2nd ed.). London: RCTS. p. 93. ISBN 0-901115-49-5. "Espacenet – Bibliographic data". Worldwide.espacenet.com. Retrieved 12 January 2013. "Brief Biographies
Valve_gear
East German shatter-resistant glass
Archived from the original (PDF) on 2024-05-25. "Espacenet – search results". worldwide.espacenet.com. Retrieved 2024-05-01. "Super strong glasses -
Superfest
Search engine from Google that indexes patents and patent applications
provides a link to the Darts-ip patent cases database. Baidu Patents Espacenet INPADOC Patentscope "Coverage - Google Help". support.google.com. "About
Google_Patents
Canopy designed to protect against rain or sunlight
"Espacenet – Bibliographic data". worldwide.espacenet.com. Archived from the original on 10 November 2013. Retrieved 10 November 2013. "Espacenet – Bibliographic
Umbrella
Modulation technique to reduce signal interference
Spread-Spectrum Communication Systems, 4th ed. "Espacenet - Bibliographic data". worldwide.espacenet.com. Retrieved December 2, 2020. Stuber, Gordon L
Direct-sequence spread spectrum
Direct-sequence_spread_spectrum
fr. Retrieved 11 March 2024. [4]. worldwide.espacenet.com. Retrieved 11 March 2024. [5].worldwide.espacenet.com.Retrieved 16 october 2025. "Feu Routier
History_of_traffic_lights
Namibian fermented dairy product
product. List of yogurt-based dishes and beverages "Espacenet - Bibliographic data". worldwide.espacenet.com. Archived from the original on 2021-03-14. Retrieved
Omaere
British steam locomotive engineer
ISBN 0-7110-0228-2. "Espacenet – Bibliographic data". Worldwide.espacenet.com. Retrieved 14 January 2013. "Espacenet – Bibliographic data". Worldwide.espacenet.com. Retrieved
Harold_Holcroft
Chinese-American physicist and engineer
lighting, and UV detector and imaging sensor applications". worldwide.espacenet.com. Retrieved 2021-12-17. Jin, S. X.; Li, J.; Li, J. Z.; Lin, J. Y.;
Jingyu_Lin
Deep blue pigment first mixed by the French artist Yves Klein
Yves Klein: L'aventure monochrome (Paris: Gallimard, 2006), pp. 36–37. Espacenet Patent search. FR1258418 (A) – Procédé de décoration ou d'intégration
International_Klein_Blue
English locomotive engineer
2013. "Espacenet - Bibliographic data". Worldwide.espacenet.com. Retrieved 14 January 2013. "Espacenet - Bibliographic data". Worldwide.espacenet.com. Retrieved
James Holden (locomotive engineer)
James_Holden_(locomotive_engineer)
2012. "espacenet – Original document". Worldwide.espacenet.com. Retrieved January 17, 2012. "espacenet – Bibliographic data". Worldwide.espacenet.com. Retrieved
History_of_television
Style of table lamp
"Improvements in or relating to electric table lamps and the like". Espacenet. Archived from the original on 22 April 2023. Retrieved 4 September 2021
Banker's_lamp
Online patent file service
Dossier is available via the USPTO, the European Patent Register and espacenet. Patent family "Global Dossier – file wrappers from the EPO, SIPO, JPO
Global_Dossier
Form of illumination used in liquid crystal displays
J.S.M. de Vaan; US patent USRE42428E; 7 June 2011; https://worldwide.espacenet.com/publicationDetails/biblio?CC=US&NR=RE42428E Archived 8 March 2021
Backlight
Pocket-sized card with authentication circuitry
original on 25 April 2013. Retrieved 29 July 2016. "Espacenet – Original document". Worldwide.espacenet.com. 8 August 1978. Archived from the original on
Smart_card
British bolt-action rifle
ISBN 9781472842350. "GB897079A Improvements in or relating to rifles" – via Espacenet. McCollum, Ian (13 December 2021). "7.62mm Rifle L8: The Last Gasp of
Lee–Enfield
Fluid coupling that transfers rotating power from a prime mover to a rotating driven load
Robert Bosch. 1993. p. 539. ISBN 0-8376-0330-7. "Espacenet - Original document". Worldwide.espacenet.com. 1933-03-07. Retrieved 2014-07-21. "Mekydro Transmission
Torque_converter
Device that vaporizes a liquid nicotine solution for inhalation
PMC 5055681. PMID 27717371. "Electronic Atomization Cigarette". Worldwide.espacenet.com. 22 November 2007. Archived from the original on 1 November 2013.
Electronic_cigarette
Ring-shaped covering around a wheel's rim
"Original document: US5104 (A) ― 1847-05-08 - R.W. Thompson Carriage Wheel". Espacenet patent search. Retrieved 6 December 2023.[permanent dead link] "William
Tire
Meat product
24 May 2012. "Bibliografische Daten: GB131402 (A) ― 28 August 1919". Espacenet. Archived from the original on 28 February 2016. Retrieved 24 July 2013
Sausage
Austrian-American physicist, entrepreneur
Technologies". 2016-08-08. Retrieved 2023-12-26. "Espacenet – search results". worldwide.espacenet.com. Retrieved 2020-12-16. "Michl Binderbauer, PhD"
Michl_Binderbauer
Bicycle tube valve
"Improvements in Pumps for Inflating Pneumatic Tyres and the like". v3.espacenet.com. Europäisches Patentamt. "Synonyme". Korrekturen.de. Julian von Heyl
Presta_valve
Ammunition feeding device of a firearm
Rifles". 9 December 2020. Retrieved 21 October 2022. U.S. patent 386638A "Espacenet – search results" (in German). Archived from the original on 30 October
Magazine_(firearms)
Swiss watch designer and manufacturer
"Mécanisme de remontoir pour montres (Self-winding Rotor Patent in French)". Espacenet. Archived from the original on 12 April 2022. Retrieved 27 February 2022
Rolex
Swiss multinational pharmaceutical corporation
original on 15 December 2020. Retrieved 11 November 2016. "Espacenet - results view". worldwide.espacenet.com. Archived from the original on 17 November 2018
Novartis
American inventor
Klitsner". Johnson & Fancher, Inc. Retrieved 2018-01-28. "Espacenet Bibliographic data". worldwide.espacenet.com. Retrieved 2018-01-28. Virtue, Graeme (2016-06-13)
Dan_Klitsner
Italian luxury watch manufacturer
Panerai 2011. "Orologeria Svizzera – the Watch Shop". 22 February 2018. "Espacenet – search results". Panerai 2011a. "A Historically Important Collection
Panerai
Belgian engineering company
Future of Transportation". NestFame Creations Pvt Ltd. "Espacenet – search results". worldwide.espacenet.com. Retrieved 2023-09-14. "SHOCK TREATMENT IMPROVES
Gantrex_Group
Type of electrochemical cell
original on 11 April 2012. Retrieved 12 June 2013. "Espacenet – Bibliographic data". Worldwide.espacenet.com. Retrieved 12 June 2013. "Full text of "The Electrical
Edison–Lalande_cell
issued: 13 January 1922). Available on-line (in French) at: http://v3.espacenet.com/origdoc?DB=EPODOC&IDX=FR534801&F=0&QPN=FR534801 . "Jet Propulson for
History_of_the_jet_engine
Brand of modeling clay
Conway. p. 16. ISBN 9781844861071. "Citation of 1915 Harbutt patent". Espacenet. Retrieved 15 August 2023. May, James (2009). Toy Stories. London: Conway
Plasticine
Process of determining the nucleic acid sequence
PMC 9487899. PMID 35925813. Retrieved 17 August 2025. "Espacenet – Bibliographic data". worldwide.espacenet.com. Archived from the original on 10 January 2022
DNA_sequencing
Road safety device
(Caltrans) Standard Plan A20A & A20C "Espacenet". Archived from the original on 2008-09-20. Retrieved 2006-12-20. "Espacenet". Archived from the original on
Raised_pavement_marker
Chemical compound
82.3575K. doi:10.1021/ja01499a025. ISSN 0002-7863. "Espacenet – search results". worldwide.espacenet.com. Retrieved 2023-12-05. "Substance Information -
Methoxyacetic_acid
Whittle (1907–1996)". BBC. Retrieved 26 March 2010. "Espacenet - Original document". worldwide.espacenet.com. Archived from the original on 21 June 2022.
Timeline of historic inventions
Timeline_of_historic_inventions
Magnetic toy
WITH MAGNETIC ANCHORAGE FOR THE CONSTRUCTION OF STABLE GRID STRUCTURES". Espacenet: free access to over 140 million patent documents. epspacenet. 18 July
Geomag
Swiss inventor (1909–1982)
impedance matching in radio-frequency circuits. Brown Boveri Review, September 1944: 329–329 "Espacenet - Original document". "Espacenet - results view".
Gustav_Guanella
20th-century electrical engineer and physicist (1882–1963)
Lilienfeld in memory of her husband, Julius Edgar Lilienfeld. "Espacenet - Original document". "Espacenet - Original document". Archived from the original on 2021-03-08
Julius_Edgar_Lilienfeld
British engineer, scientist, and researcher (1948–2020)
The Leader. 29 April 2020. Retrieved 15 August 2020. "Espacenet Patent Search". Worldwide Espacenet. 15 August 2020. Retrieved 15 August 2020. "Peter Excell"
Peter_Excell
Romanian engineer and aviator
110–114 Gheorghiu, 1960, p. 299 "Espacenet – Bibliographic data | Great Britain Patent GB191026658". v3.espacenet.com. Retrieved 2015-01-10. "Membrii
Aurel_Vlaicu
Medical drug injection device
Improvements in and relating to self-acting syringes for hypodermic injections "Espacenet – search results". Selvaraj, Anjutha; Kulkarni, Apoorv; Pearce, J. M.
Autoinjector
Unique oil-burning steam locomotive
Haresnape 1976, p. 100. Tabor 1959, pp. F45–F46. "Espacenet – search results". worldwide.espacenet.com. Retrieved 18 August 2021. HornbyGuide 2016. Hornby
GWR_101_Class
Locomotive in Russia". June 26, 2004. "Locomotive having combined internal-combustion and electric propulsion system". Espacenet Patent Search. v t e v t e
Soviet locomotive class E el-8
Soviet_locomotive_class_E_el-8
Type of ion separator used in mass spectrometry
spectrometer". Worldwide.espacenet.com. Retrieved 29 September 2026. "WO02078046A2 MASS SPECTROMETRY METHOD AND APPARATUS". Worldwide.espacenet.com. Retrieved 29
Orbitrap
Brand of paraffin lamp
lamp List of light sources German patent DE365530 1921 https://worldwide.espacenet.com/patent/search/family/007072173/publication/DE365530C?q=DE365530C Summary
Petromax
Display technology implementation
Brambring; European patent EP0428213B1; 27 July 1994; https://worldwide.espacenet.com/publicationDetails/biblio?CC=EP&NR=0428213B1&KC=B1&FT=D# Archived
LED-backlit_LCD
British railway engineer (1882-1970)
GB547156 (A) ― 1942-08-17". Espacenet. Retrieved 13 January 2013. "Bibliographic data: GB547180 (A) ― 1942-08-17". Espacenet. Retrieved 13 January 2013
Oliver_Bulleid
Scottish steam locomotive engineer (1840–1912)
JSTOR community.26326867. "Espacenet – Bibliographic data". Worldwide.espacenet.com. 19 December 2012. Retrieved 13 January 2013. "Espacenet – Bibliographic data"
Dugald_Drummond
(filed: 1918-06-21; published: 1920-08-05). Available on-line at: http://v3.espacenet.com/origdoc?DB=EPODOC&IDX=GB148582&F=0&QPN=GB148582 . Reddy, R. (1996)
List of pioneers in computer science
List_of_pioneers_in_computer_science
Aircraft engine that produces thrust by emitting a jet of gas
1115/GT2004-53211. ISBN 978-0-7918-4167-9. "Propulseur par réaction sur l'air". Espacenet – patent search. "Who really invented the jet engine?". BBC Science Focus
Jet_engine
Scottish printing and stationery company based in Edinburgh
Patent no. GB 151844 (A)". espacenet. 1919. "Improvements in fountain and reservoir pens: Patent no. GB428727 (A)". espacenet. 1935. Wikimedia Commons has
Macniven_and_Cameron
2010s Italian electric tiltrotor aircraft
11-12. "Espacenet — Original document". Worldwide.espacenet.com. Retrieved 29 April 2013. "Espacenet —Original document". Worldwide.espacenet.com. Retrieved
AgustaWestland_Project_Zero
Percentage of views on a certain web page that made a desired click
"US20090157495A1 Immersion Into a Virtual Environment Through a Solicitation". Espacenet. European Patent Office. Retrieved 7 September 2026. "About sitelink assets"
Click-through_rate
Orthopedic surgery to replace a joint
(2011) International Patent No. 127321A. Orem, UT: US http://worldwide.espacenet.com Thomas, Peter (2014-01-01). "Clinical and diagnostic challenges of
Joint_replacement
Chemical compound
ISBN 9783527303854. "US4205014A Process for 1,2,4,5-tetrachlorobenzene". Espacenet. Retrieved 22 June 2023. NTP Toxicity Study Reports. National Toxicology
Tetrachlorobenzene
Mechanical piece of climbing equipment
Seattle: The Mountaineers. ISBN 0-89886-828-9. "Espacenet - Bibliographic data". worldwide.espacenet.com. Archived from the original on 2019-05-28. Retrieved
Belay_device
Firearms - how a cartridge is fed into and extracted from the chamber
"Improvement in magazine fire-arms", issued 1879-11-04 "Espacenet - Original document". worldwide.espacenet.com. (in German). US 476290A, Paul Mauser, "Cartridge
Push_feed_and_controlled_feed
Composite material used for paving
the Method of "Tarring" Broken Slag, Macadam, and similar Materials". Espacenet - Patent search. Retrieved 2024-12-29.[permanent dead link] GB190207796A
Asphalt_concrete
Ball used in the sport of golf
October 12, 2022. Retrieved November 11, 2020. "Bibliographic data". Espacenet.com. Archived from the original on 2023-07-18. Retrieved 2015-07-16. Brenner
Golf_ball
Chemical process used to remove sulfur in natural gas and oil refining
DE141029 (Espacenet, record not available)". Archived from the original on 2008-05-11. Retrieved 2006-12-03. "UK Patent GB190301515 GB190301515 (Espacenet)".
Hydrodesulfurization
Kitchen utensil
Description: GB2315990 (A) ― 1998-02-18 - Hand operated garlic peeler, espacenet.com A Simple Garlic Peeler That Works Almost Too Well, 21 Februarie 1996
Garlic_peeler
Triangle shaped aircraft wing configuration
Aeroplanes, UK Patent No. 8118, Date of Application 5 April 1909. Copy on Espacenet Archived 2021-10-01 at the Wayback Machine Woodhams, Mark and Henderson
Delta_wing
Patent classification system
documents in 2017. The data will be shared with the EPO. CPC replaces ECLA on Espacenet Archived 2012-11-22 at the Wayback Machine, Patent Information News issue
Cooperative Patent Classification
Cooperative_Patent_Classification
Patent database
patent collections the database past the 30 million record mark. In 2014, Espacenet, Patentscope and Depatisnet were the main multinational patent databases
Patentscope
Symmetric-key block cipher
of Full IDEA" (PDF). www.cs.bris.ac.uk. "Espacenet - Bibliografische Daten" (in German). Worldwide.espacenet.com. Retrieved 2013-06-15. Garfinkel, Simson
International Data Encryption Algorithm
International_Data_Encryption_Algorithm
French board game designer (1851–1934)
Date of application 25 November 1909, accepted 17 November 1910" – via Espacenet.. Michel Boutin. "Histoire d'un jeu particulier (Stratego). Les jeux de
Hermance_Edan
Gas compressor where the piston is driven by a linear actuator
für linearen Kompressor und Verfahren dafür". "Espacenet : Original document". Worldwide.espacenet.com. Retrieved 5 November 2017. "Problems 4.7 - A
Linear_compressor
Musical instrument
original on 15 October 2009. Retrieved 17 June 2013. "Espacenet - Original document". Worldwide.espacenet.com. 1930-02-27. Retrieved 2014-05-12. Friedman,
Toy_piano
Thermal decomposition of materials
have formed on metal or ceramic machine parts, equipment and tools". Espacenet. European Patent Office. Archived from the original on 31 December 2020
Pyrolysis
2008-10-17 at the Wayback Machine on the Espacenet web site. Consulted on January 20, 2007. On the Espacenet web site: European Classification (ECLA)
European_Classification
travel, tourism, insurance
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travel, tourism, insurance