IP Library › Granted Patent US 12,714,437
Granted Patent B2
US 12,714,437 · App. 18/780,153 · Granted Aug 25, 2026

Windlass tourniquet

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,714,437
App. No.
18/780,153
Granted
Aug 25, 2026
Kind
B2
Continuity (3)
Continuation 17609715 · May 8, 2020
Provisional Application 62845051 · May 8, 2019
Related Publication 20240374264A1 · Nov 14, 2024
References Cited (141)
US 462547A · Gintzburg · 1891 [cited by applicant]
US 496630A · Adams · 1893 [cited by applicant]
US 818292A · Reid · 1906 [cited by applicant]
US 1416417A · Robinson · 1922 [cited by applicant]
US 1419592A · Sturges · 1922 [cited by applicant]
US 1708985A · Wadsworth · 1929 [cited by applicant]
US 1855482A · McArthur · 1932 [cited by applicant]
US 1887096A · Hodge · 1932 [cited by applicant]
US 2037558A · Anderson · 1936 [cited by applicant]
US 2084412A · Schaefer · 1937 [cited by applicant]
US 2250977A · Walker · 1941 [cited by applicant]
US RE21948E · White et al. · 1941 [cited by applicant]
US 2387428A · Brothers · 1945 [cited by applicant]
US 2403712A · Elwell · 1946 [cited by applicant]
US 2422459A · Anderson · 1947 [cited by applicant]
US 2480430A · Walters · 1949 [cited by applicant]
US D185635S · Gerlach · 1959 [cited by applicant]
US 3404436A · McMurray · 1968 [cited by applicant]
US D260074S · Lewis · 1981 [cited by applicant]
US 4549550A · Kami · 1985 [cited by applicant]
US 4551889A · Narayan et al. · 1985 [cited by applicant]
US 4608735A · Kasai · 1986 [cited by applicant]
US 4610056A · Emmert · 1986 [cited by applicant]
US 4778033A · Gonzalez et al. · 1988 [cited by applicant]
US 4794656A · Henley, Jr. · 1989 [cited by applicant]
US D324328S · Pagan · 1992 [cited by applicant]
US 5607448A · Stahl et al. · 1997 [cited by applicant]
US D385178S · Poulin · 1997 [cited by applicant]
US 5993362A · Ghobadi · 1999 [cited by applicant]
US 6298521B1 · Butterfield · 2001 [cited by applicant]
US 6540707B1 · Stark et al. · 2003 [cited by applicant]
US 6544188B1 · Chesney et al. · 2003 [cited by applicant]
US 6602214B2 · Heinz et al. · 2003 [cited by applicant]
US 6746470B2 · McEwen et al. · 2004 [cited by applicant]
US 6884254B2 · Brooks · 2005 [cited by applicant]
US 6899720B1 · McMillan · 2005 [cited by applicant]
US D516901S · Murray · 2006 [cited by applicant]
US D527981S · Sato · 2006 [cited by applicant]
US D545663S · Sato · 2007 [cited by applicant]
US 7296327B2 · Anderson et al. · 2007 [cited by applicant]
US 7353573B2 · Anscher · 2008 [cited by applicant]
US D592484S · Ricereto · 2009 [cited by applicant]
US 7582102B2 · Heinz et al. · 2009 [cited by applicant]
US 7752722B2 · Calkin · 2010 [cited by applicant]
US 7776064B2 · Jennifer et al. · 2010 [cited by applicant]
US 7842067B2 · Esposito et al. · 2010 [cited by applicant]
US 7892253B2 · Esposito et al. · 2011 [cited by applicant]
US D649642S · Johnson et al. · 2011 [cited by applicant]
US 8065781B2 · Chao · 2011 [cited by applicant]
US 8214975B2 · Calkin · 2012 [cited by applicant]
US 8303620B2 · Johnson et al. · 2012 [cited by applicant]
US 8343182B2 · Kirkham · 2013 [cited by examiner]
US 8348970B2 · Janota · 2013 [cited by applicant]
US 8776323B2 · McLennan · 2014 [cited by applicant]
US 9730703B2 · Rose et al. · 2017 [cited by applicant]
US 10016203B2 · Esposito · 2018 [cited by examiner]
US 10258347B2 · Hopman · 2019 [cited by examiner]
US 10336416B2 · Henderson · 2019 [cited by examiner]
US 11224441B2 · Johnson et al. · 2022 [cited by applicant]
US 11466753B2 · Farell · 2022 [cited by applicant]
US 11547423B2 · Peterson · 2023 [cited by examiner]
US 11684373B2 · Parsons · 2023 [cited by examiner]
US D991452S · Liu · 2023 [cited by examiner]
US 11701125B2 · Haskins · 2023 [cited by examiner]
US 11826053B2 · Johnson et al. · 2023 [cited by applicant]
US 12042154B2 · Johnson · 2024 [cited by examiner]
US 20020148461A1 · Heinz et al. · 2002 [cited by applicant]
US 20050049630A1 · Ambach · 2005 [cited by applicant]
US 20050267518A1 · Wright et al. · 2005 [cited by applicant]
US 20050273134A1 · Esposito et al. · 2005 [cited by applicant]
US 20060095072A1 · TenBrink et al. · 2006 [cited by applicant]
US 20080183207A1 · Home · 2008 [cited by applicant]
US 20080221612A1 · Rose et al. · 2008 [cited by applicant]
US 20090024159A1 · Nee et al. · 2009 [cited by applicant]
US 20090151132A1 · Rotunno, Jr. · 2009 [cited by applicant]
US 20100057120A1 · Kirkham · 2010 [cited by applicant]
US 20100234877A1 · Pienkowski et al. · 2010 [cited by applicant]
US 20110270299A1 · Rose et al. · 2011 [cited by applicant]
US 20110295309A1 · Sullivan et al. · 2011 [cited by applicant]
US 20110307004A1 · Johnson et al. · 2011 [cited by applicant]
US 20140277103A1 · Esposito et al. · 2014 [cited by applicant]
US 20150094756A1 · Kosiorek et al. · 2015 [cited by applicant]
US 20150216536A1 · Hopman et al. · 2015 [cited by applicant]
US 20160128700A1 · Fry · 2016 [cited by applicant]
US 20160302799A1 · Esposito · 2016 [cited by applicant]
US 20160375969A1 · Henderson · 2016 [cited by applicant]
US 20180228497A1 · Dimino · 2018 [cited by examiner]
US 20180317935A1 · Engwall · 2018 [cited by applicant]
US 20200288820A1 · Johnson · 2020 [cited by examiner]
US 20210000482A1 · Parsons · 2021 [cited by examiner]
US 20210153873A1 · Peterson · 2021 [cited by examiner]
US 20220151636A1 · Haskins · 2022 [cited by examiner]
US 20220218359A1 · Johhnson · 2022 [cited by examiner]
US 20230233213A1 · Shedd · 2023 [cited by examiner]
US 20240374264A1 · Johson · 2024 [cited by examiner]
CN 2467055Y · 2001 [cited by applicant]
CN 201375542Y · 2010 [cited by applicant]
CN 201441415U · 2010 [cited by applicant]
CN 202497191U · 2012 [cited by applicant]
CN 202505426U · 2012 [cited by applicant]
CN 205102076U · 2016 [cited by applicant]
DE 3327528A1 · 1985 [cited by applicant]
GB 572460A · 1945 [cited by applicant]
GB 674631A · 1952 [cited by applicant]
GB 2138490A · 1984 [cited by applicant]
GB 2179392A · 1987 [cited by applicant]
JP H0751275A · 1995 [cited by applicant]
RU 117797U1 · 2012 [cited by applicant]
RU 177273U1 · 2018 [cited by applicant]
SU 1602483A1 · 1990 [cited by applicant]
WO 2005090207A1 · 2005 [cited by applicant]
European Patent Office, English abstract of CN2467055 Y, retrieved Sep. 24, 2020. pp. 1. [cited by applicant]
European Patent Office, English abstract of CN201375542 Y, retrieved Sep. 24, 2020. pp. 1. [cited by applicant]
European Patent Office, English abstract of CN201441415 U, retrieved Sep. 24, 2020. pp. 1. [cited by applicant]
European Patent Office, English abstract of CN202497191 U, retrieved Sep. 24, 2020. pp. 1. [cited by applicant]
European Patent Office, English abstract of CN202505426 U, retrieved Sep. 24, 2020. pp. 1. [cited by applicant]
European Patent Office, English abstract of CN205102076 U, retrieved Sep. 24, 2020. pp. 1. [cited by applicant]
European Patent Office, English abstract of DE3327528 A1, retrieved Sep. 24, 2020. pp. 1. [cited by applicant]
Google Patents, English Translation of JPS59232531 A, retrieved Mar. 4, 2025. pp. 1-11. [cited by applicant]
United States Patent and Trademark Office, International Search Report for Application No. PCT/US2018/024126, May 30, 2018. pp. 1-2. [cited by applicant]
United States Patent and Trademark Office, International Preliminary Report for Application No. PCT/US2018/024126, Nov. 21, 2019. pp. 1-33. [cited by applicant]
European Patent Office, European Supplementary Search Report for Application No. EP 04 81 7773, Jun. 23, 2011, pp. 1-2. [cited by applicant]
United States Patent and Trademark Office, Office Action for U.S. Appl. No. 16/579,175 dated Sep. 20, 2023. pp. 1-11. [cited by applicant]
United States Patent and Trademark Office, Written Opinion for PCT/US2020/032254, Jul. 24, 2020. pp 1-11. [cited by applicant]
Australian Government IP Australia, Examination report No. 1 for Standard Patent Application, Application No. 2020268195, Nov. 16, 2021. pp. 1-2. [cited by applicant]
China National Intellectual Property Administration, Application No. 202080045654.X, The First Office Action, Aug. 1, 2024. pp. 1-8. [cited by applicant]
China National Intellectual Property Administration, Application No. 202080045654X, The First Search, Aug. 1, 2024. pp. 1. [cited by applicant]
China National Intellectual Property Administration, Application No. 202080045654.X, The Second Office Action, Jan. 27, 2025. pp 1-7. [cited by applicant]
European Patent Office, Application No. 20802627.8, PCT/US2020032254, Extended European Search Report, Feb. 23, 2023. pp. 1-10. [cited by applicant]
European Patent Office, Application No. 20 802 627.8, Communication under Rule 71(3) EPC, Aug. 6, 2024. pp. 1-8. [cited by applicant]
Institut National De La Propiete Industrielle, Notification du RRP avec obligation de Reponse—Demande N FR2004621. Apr. 28, 2021. pp 1-10. [cited by applicant]
Intellectual Property India, Government of India, Application No. 202117052751, Examination Report Under Sections 12 &13 of the Patents Act, 1970 and the Patents Rules, 2003. May 10, 2022. pp. 1-6. [cited by applicant]
Federal Service for Intellectual Property of the Russian Federation, Report on Application No. 2021136057 for PCT/US2020/032254. pp. 1-2. [cited by applicant]
European Patent Office, English Abstract for RU117797UI., retrieved Mar. 3, 2025. pp. 1-2. [cited by applicant]
European Patent Office, English Abstract for RU177273U1, retrieved Mar. 3, 2025. pp. 1-2. [cited by applicant]
European Patent Office, English Abstract for SU1602483A1, retrieved Mar. 3, 2025. pp. 1. [cited by applicant]
United States Patent and Trademark Office, Office Action for U.S. Appl. No. 16/496,611 dated Jun. 15, 2022. pp 1-24. [cited by applicant]
United States Patent and Trademark Office, Final Office Action for U.S. Appl. No. 16/496,611 dated Jan. 5, 2023. pp 1-8. [cited by applicant]
McEwen et al; Surgical Tourniquet Technology Adapted for Military and Pre-Hospital Use; RTO-MP-HFM; 2004; pp. 19-1-19-12. [cited by applicant]
Calkins, et al.; Evaluation of Possible Tourniquet Systems for The Far Forward Setting; unknown publication date; pp. 1-38. [cited by applicant]
United States Patent and Trademark Office, Office Action for U.S. Appl. No. 16/579,175 dated Oct. 17, 2022. pp. 1-11. [cited by applicant]