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

Alan G. Holmes — 187 Patents

General Motors: 181 patents #13 of 18,328Top 1%
Daimlerchrysler Ag: 1 patents #1,774 of 4,854Top 40%
Clarkston, MI: #1 of 750 inventorsTop 1%
Michigan: #69 of 86,293 inventorsTop 1%
Overall (All Time): #3,928 of 4,157,543Top 1%
187 Patents All Time
Alan G. Holmes has been granted 187 US patents while listed as an inventor at General Motors. The first was granted in 1981 and the most recent in December 2025. Alan G. Holmes ranks #3,928 of 4,157,543 US inventors in our database (top 0.09%). Patent records list Alan G. Holmes in Clarkston, MI, US.

Patents per Year

Patents granted per year, 1981 to 2025Bar chart with a peak of 18 patents in 2012.peak 181981: 1 patents19811984: 1 patents1986: 1 patents1999: 1 patents19992002: 1 patents2003: 3 patents2004: 1 patents20042005: 2 patents2006: 3 patents2007: 12 patents20072008: 5 patents2009: 14 patents2010: 14 patents20102011: 16 patents2012: 18 patents2013: 15 patents20132014: 13 patents2015: 16 patents2016: 10 patents20162017: 7 patents2018: 5 patents2019: 4 patents20192020: 5 patents2021: 4 patents2022: 1 patents20222023: 3 patents2024: 3 patents2025: 8 patents2025

Issued Patents All Time

Showing 1–25 of 187 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12494687 Rotor assembly with a composite sleeve that is optimized for press-fit installation Anthony M. Coppola, Derek F. Lahr, Alireza Fatemi, Michael B. Viola, Bradley A. Newcomb 2025-12-09
12451781 Hybrid excited rotary machine Alireza Fatemi, Shawn H. Swales, Mazharul Chowdhury, Muhammad Hussain Alvi, Peng Peng +1 more 2025-10-21
12438426 Adjustable air gap axial flux motor Jiantao Yao, Chia-Hsing Duan, Vincent Fedida, DENGXIA FAN 2025-10-07
12424892 Stabilized core assembly for carbon fiber sleeved electric motor rotor Anthony M. Coppola, Derek F. Lahr, Alireza Fatemi, Erik B. Golm, Michael B. Viola 2025-09-23
12420632 All-wheel drive system for electric vehicle Joseph D. Kliewer, James B. Borgerson, Brenten Paul Corliss, Daryl A. Wilton, Giles D. Bryer 2025-09-23
12311767 Hybrid propulsion system 2025-05-27
12301060 Rotors for electric motors Jian Yao, Vincent Fedida, Chengwu Duan, Yusheng Zou 2025-05-13
12194827 Integrated electrified propulsion system for a vehicle Joel S. Hooton, Brian V. Castillo, Joseph D. Kliewer 2025-01-14
12155266 Bridgeless and webless rotor assembly using polymer composites Anthony M. Coppola, Alireza Fatemi, Derek F. Lahr, Kestutis A. Sonta 2024-11-26 $23,776,000
12088146 Rotor for an electric machine, electric machine for a vehicle, and vehicle Alireza Fatemi, Anthony M. Coppola, Derek F. Lahr 2024-09-10 $20,963,000
11916446 Rotor assembly with solid low friction layer and press-fit sleeve Anthony M. Coppola, Alireza Fatemi, Derek F. Lahr, Kestutis A. Sonta 2024-02-27 $12,163,000
11830668 Method of manufacturing permanent magnet of rotor for axial flux electric machine yielding permanent magnet with low loss and low cost Jian Yao, Denghao Fan, Yusheng Zou, Thomas W. Nehl 2023-11-28 $22,097,000
11713803 Carbon fiber composite drive unit housings for electric vehicles Anthony M. Coppola, Derek F. Lahr, Alireza Fatemi, Bradley A. Newcomb 2023-08-01 $33,661,000
11710993 Electric machines with features for enhancing load transfer performance of stacked-laminate rotors Anthony M. Coppola, Alireza Fatemi, Yew Sum Leong 2023-07-25 $31,986,000
11383593 Electric drive unit clutch Pete R. Garcia, Joseph R. Littlefield 2022-07-12 $19,860,000
11035448 Multi-axis final drive assembly Joseph R. Littlefield 2021-06-15 $49,101,000
10982745 Planetary differential drive system Joseph R. Littlefield, Brendan M. Conlon 2021-04-20 $26,620,000
10920859 Two-speed electric drive-unit Brendan M. Conlon 2021-02-16 $45,829,000
10914378 Roller-gear shift by wire parking system Dumitru Puiu, Gurdeep Singh 2021-02-09 $41,459,000
10730502 Method and apparatus to control vehicle operation on a grade Kris Sevel, Mindy L. Barth 2020-08-04 $26,208,000
10724610 Hybrid powertrain Edward W. Mellet 2020-07-28 $31,780,000
10704632 Transmission clutch assembly 2020-07-07
10697524 Motor vehicle powertrain Joseph R. Littlefield, Rebecca K. Risko Cattell 2020-06-30 $11,542,000
10557536 Multi-axis final drive assembly Joseph R. Littlefield 2020-02-11 $12,010,000
10500938 Motor vehicle powertrain Joseph R. Littlefield, Rebecca K. Risko Cattell 2019-12-10 $13,646,000