Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
JH

James D. Hendrickson — 77 Patents

General Motors: 50 patents #154 of 18,328Top 1%
Schlumberger Technology: 9 patents #694 of 7,293Top 10%
HSHalliburton Energy Services: 8 patents #956 of 5,294Top 20%
VOVocollect: 7 patents #12 of 125Top 10%
OEOtis Engineering: 2 patents #82 of 228Top 40%
Daimlerchrysler Ag: 1 patents #1,774 of 4,854Top 40%
HPHand Held Products: 1 patents #481 of 724Top 70%
Oxford, MI: #2 of 390 inventorsTop 1%
Michigan: #402 of 86,293 inventorsTop 1%
Overall (All Time): #24,274 of 4,157,543Top 1%
77 Patents All Time
James D. Hendrickson has been granted 77 US patents while listed as an inventor at General Motors. The first was granted in 1981 and the most recent in November 2025. James D. Hendrickson ranks #24,274 of 4,157,543 US inventors in our database (top 0.58%). Patent records list James D. Hendrickson in Oxford, MI, US.

Patents per Year

Patents granted per year, 1981 to 2023Bar chart with a peak of 20 patents in 2007.peak 201981: 2 patents19811989: 1 patents1993: 1 patents1994: 1 patents19941995: 1 patents1997: 1 patents1998: 1 patents19981999: 2 patents2001: 2 patents2003: 2 patents20032006: 1 patents2007: 20 patents2008: 3 patents20082009: 3 patents2010: 6 patents2011: 4 patents20112012: 5 patents2013: 4 patents2014: 4 patents20142017: 1 patents2018: 1 patents2019: 2 patents20192020: 4 patents2021: 1 patents2022: 1 patents20222023: 2 patents2023

Issued Patents All Time

Showing 1–25 of 77 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12476314 Structural battery pack Nicholas Compton, Giles D. Bryer, Ian A. Stines, Jason Mitchick, Alexander M. Bilinski +4 more 2025-11-18
11817078 Systems and methods for dynamically improving user intelligibility of synthesized speech in a work environment Debra Drylie Stiffey, Duane Littleton, John Pecorari, Arkadiusz Slusarczyk 2023-11-14
11810545 Systems and methods for dynamically improving user intelligibility of synthesized speech in a work environment Debra Drylie Stiffey, Duane Littleton, John Pecorari, Arkadiusz Slusarczyk 2023-11-07
11460513 Assessment of cell group health in a battery pack Jeffrey A. Tymitz 2022-10-04 $43,420,000
11042834 Voice-enabled substitutions with customer notification Lori Pike, Vanessa Cassandra Sanchez, Timothy Reed, Justin Volz, Brian Quinn +4 more 2021-06-22
10876620 Vacuum driven hydraulic balance system Yujiro Suwa, Robert Parrish 2020-12-29 $43,814,000
10685643 Systems and methods for dynamically improving user intelligibility of synthesized speech in a work environment Debra Drylie Stiffey, Duane Littleton, John Pecorari, Arkadiusz Slusarczyk 2020-06-16
10621538 Dynamic check digit utilization via electronic tag John Pecorari 2020-04-14
10557527 Wide-node drive system Craig S. Ross 2020-02-11 $12,010,000
10468015 Automated TTS self correction system Lori Pike, Justin Volz 2019-11-05
10171014 System and method for electric motor field weakening with variable magnet skew Khwaja M. Rahman, William F. Miller 2019-01-01
9863522 Torque converter clutch release fluid lubrication David J. Varda, Steven P. Moorman 2018-01-09 $11,873,000
9697818 Systems and methods for dynamically improving user intelligibility of synthesized speech in a work environment Debra Drylie Stiffey, Duane Littleton, John Pecorari, Arkadiusz Slusarczyk 2017-07-04
8915343 Method of controlling a dual clutch transmission Steven P. Moorman, Philip C. Lundberg, John R. Czoykowski, Bret M. Olson, Chinar S. Ghike +1 more 2014-12-23 $11,759,000
8914290 Systems and methods for dynamically improving user intelligibility of synthesized speech in a work environment Debra Scott, Duane Littleton, John Pecorari, Arkadiusz Slusarczyk 2014-12-16
8904893 Method of controlling a dual clutch transmission Steven P. Moorman, Philip C. Lundberg, John R. Czoykowski, Bret M. Olson, Chinar S. Ghike +1 more 2014-12-09 $11,528,000
8820185 Control system for a dual clutch transmission John R. Czoykowski, Chinar S. Ghike, Philip C. Lundberg, Steven P. Moorman, Bret M. Olson 2014-09-02 $8,152,000
8590684 Control system for a dual clutch transmission John R. Czoykowski, Chinar S. Ghike, Philip C. Lundberg, Steven P. Moorman, Bret M. Olson 2013-11-26 $10,320,000
8562483 Method and system for controlling an EV mode transition in a two-mode hybrid vehicle Hong Yang, Anthony L. Smith, Shawn H. Swales, Brendan M. Conlon, Jy-Jen F. Sah 2013-10-22 $7,121,000
8499843 System and method to seal using a swellable material Dinesh R. Patel, Y. Gill Hillsman, III, Herve Ohmer, Stephane Hiron, Philippe Gambier +9 more 2013-08-06 $29,990,000
8413437 Transmission hydraulic control system having independently controlled stator cooling flow Chinar S. Ghike, Zhe Xie, Terry S Johnecheck 2013-04-09 $7,228,000
8240390 Method and apparatus for releasing a packer Baozhong Yang 2012-08-14 $35,278,000
8231504 Powertrain with dual rotor motor/generator Brendan M. Conlon, Khwaja M. Rahman 2012-07-31 $6,979,000
8189336 Composite cover with integral heat sink Pete R. Garcia, Tejinder Singh 2012-05-29 $6,852,000
8182391 Electric torque converter for a powertrain and method of operating a vehicle Donald Klemen, Alan G. Holmes, Brendan M. Conlon, Norman K. Bucknor, Michael R. Schmidt 2012-05-22 $13,312,000