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John M. Larkin — 40 Patents

Chevron: 32 patents #89 of 4,788Top 2%

HPHuntsman Petrochemical: 4 patents #47 of 174Top 30%

UNUnknown: 2 patents #12,644 of 83,584Top 20%

HP: 1 patents #11,359 of 16,619Top 70%

Troy, ID: #1 of 284 inventorsTop 1%

Idaho: #366 of 8,810 inventorsTop 5%

Overall (All Time): #78,057 of 4,157,543Top 2%

40 Patents All Time

John M. Larkin has been granted 40 US patents while listed as an inventor at Chevron. The first was granted in 1980 and the most recent in July 2021. John M. Larkin ranks #78,057 of 4,157,543 US inventors in our database (top 1.9%). Patent records list John M. Larkin in Troy, ID, US.

Patents per Year

Issued Patents All Time

Showing 1–25 of 40 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
D925232	Handheld device	Christopher C. Sappenfield	2021-07-20
10952411	Method, system and apparatus for detecting when an animal is in heat	Niall Austin, Emmet Savage	2021-03-23
D860652	Handheld device	Christopher C. Sappenfield	2019-09-24
9776409	Fluidic ejection device with layers having different light sensitivities	Kevin Dooley, Liam Cheevers, Kenneth Hickey, Graeme Scott	2017-10-03	$2,788,000
6888030	Advances in amination	Wei-Yang Su, Wheeler C. Crawford	2005-05-03	$10,567,000
6093854	Process for preparing alkanolamines from polyolefin epoxides	Wei-Yang Su	2000-07-25
6063145	Fuel compositions containing etheramine alkoxylates	Wei-Yang Su, Terry L. Renken	2000-05-16
5616811	Etheramine alkoxylates	Jeffrey J. Vipond, Terry L. Renken, Howard M. Stridde	1997-04-01
5269956	Compatible corrosion inhibitor combinations	David L. Miller	1993-12-14	$63,870,000
5191139	Process for oligomerizing olefins using sulfate-activated group IV oxides	John R. Sanderson, John F. Knifton	1993-03-02	$11,273,000
5189233	Process for the production of cyclohexane by liquid phase hydrogenation of benzene	James H. Templeton, Donald H. Champion	1993-02-23	$6,181,000
5099073	Catalytic process for the production of diketone derivatives of polyoxypropylene glycols	John R. Sanderson	1992-03-24	$13,006,000
5085793	Corrosion-inhibited antifreeze/coolant composition	Jeffrey M. Burns, John R. Sanderson, David R. McCoy	1992-02-04	$9,903,000
5072050	Ketone-terminated polyoxyalkylene compounds	John R. Sanderson, Edward T. Marquis	1991-12-10	$12,388,000
5003107	Catalytic method for the reductive amination of poly(oxytetramethyle) glycols	Robert L. Zimmerman	1991-03-26	$26,807,000
4992590	Polyamines by amination of polyamino initiated polyoxyalkylene glycols	Michael Cuscurida, Kathy B. Sellstrom, Robert A. Grigsby, Jr.	1991-02-12	$16,094,000
4980503	Conversion of glycol formates to monocarboxylic acids	George P. Speranza	1990-12-25
4978785	Oxidation of polyoxypropylene glycols to acids and ketones	John R. Sanderson	1990-12-18	$17,654,000
4873380	Catalyst for removing peroxide contaminants from tertiary butyl alcohol	John R. Sanderson	1989-10-10	$29,979,000
4847417	Bis(diaminopolyalkoxy)-N-alkylamines by amination of hydroxyl-containing tertiary amines	George P. Speranza	1989-07-11	$13,991,000
4831191	Catalytic conversion of allyl formate to carboxylic acids	—	1989-05-16	$33,209,000
4827039	Nitrilo(tris)polyoxyalkyleneamines in a reaction injection molding process	Michael Cuscurida	1989-05-02	$8,628,000
4827038	Bis(diaminopolyalkoxy)-N-alkylamines by amination of hydroxyl-containing tertiary amines	George P. Speranza	1989-05-02	$8,628,000
4825000	Phenyl glycidyl ether modified polyoxyalkylene diamines and epoxy resin compositions therefrom	Robert L. Zimmerman, Michael Cuscurida, Harold G. Waddill	1989-04-25	$33,510,000
4810261	Reaction product additive and ori-inhibited motor fuel composition	Rodney L. Sung, Milton D. Behrens, Michael A. Caggiano, John F. Knifton, Robert L. Zimmerman	1989-03-07	$12,448,000