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

Roy James Primus — 58 Patents

GE: 41 patents #399 of 36,430Top 2%
THTransportation Ip Holdings: 15 patents #17 of 657Top 3%
CUCummins: 2 patents #994 of 2,217Top 45%
Niskayuna, NY: #48 of 949 inventorsTop 6%
New York: #1,472 of 115,490 inventorsTop 2%
Overall (All Time): #41,319 of 4,157,543Top 1%
58 Patents All Time
Roy James Primus has been granted 58 US patents while listed as an inventor at GE. The first was granted in 1981 and the most recent in June 2025. Roy James Primus ranks #41,319 of 4,157,543 US inventors in our database (top 0.99%). Patent records list Roy James Primus in Niskayuna, NY, US.

Issued Patents All Time

Showing 1–25 of 58 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12337817 Hybrid propulsion system and method of controlling same Thomas Michael Lavertu, Victor Manuel Salazar 2025-06-24
12152530 Turbine-compressor assembly and method Neil Xavier Blythe, Pradheepram Ottikkutti, Rogier Giepman, Michael Majewski, Kevin McElhaney +5 more 2024-11-26
11781443 Method and systems for an energy recovery and energy converting unit for an engine James Robert Mischler, Thomas Michael Lavertu 2023-10-10
11643963 Methods and systems for electric turbocharger control Adam Edgar Klingbeil, Thomas Michael Lavertu 2023-05-09
11549429 Engine mixing structures Sreenivasa Rao Gubba, Bhaskar Tamma, Victor Manuel Salazar, Adam Edgar Klingbeil, Thomas Michael Lavertu +3 more 2023-01-10
11536221 Piston crown for a combustion system and an associated method thereof Adam Edgar Klingbeil, Dattatraya Somnath Bhagoji, Kevin McElhaney, Bhaskar Tamma, Ravichandra Srinivasa Jupudi +1 more 2022-12-27
11346238 Method and systems for an energy recovery and energy converting unit for an engine James Robert Mischler, Thomas Michael Lavertu 2022-05-31
11338829 Oil carryover reduction system Adam Edgar Klingbeil, Thomas Michael Lavertu 2022-05-24
11199155 Piston crown for a combustion system and an associated method thereof Adam Edgar Klingbeil, Dattatraya Somnath Bhagoji, Kevin McElhaney, Bhaskar Tamma, Ravichandra Srinivasa Jupudi +1 more 2021-12-14
11192458 Hybrid propulsion system and method of controlling same Thomas Michael Lavertu, Victor Manuel Salazar 2021-12-07
11077871 Vehicle control system Thomas Michael Lavertu, Jennifer Lynn Jackson 2021-08-03
11008932 Engine mixing structures Adam Edgar Klingbeil, John Patrick Dowell, Victor Manuel Salazar, Thomas Michael Lavertu, Kevin Paul Bailey +3 more 2021-05-18
10947917 Methods and system for skip-firing of an engine Pradheepram Ottikkutti, Alok Kumar, Michael Majewski, Seung-Hyuck Hong, Kevin McElhaney +3 more 2021-03-16
10900373 Method and systems for an energy recovery and energy converting unit for an engine James Robert Mischler, Thomas Michael Lavertu 2021-01-26
10837401 Piston crown for a combustion system and an associated method thereof Adam Edgar Klingbeil, Dattatraya Somnath Bhagoji, Kevin McElhaney, Bhaskar Tamma, Ravichandra Srinivasa Jupudi +1 more 2020-11-17
10774771 Engine control system for reducing particulate matter Thomas Michael Lavertu, Adam Edgar Klingbeil 2020-09-15
10683796 Systems and methods for reduced oil carryover Adam Edgar Klingbeil, Edward Joseph Hall 2020-06-16 $19,442,000
10570835 Substitution rate control system for an engine and an associated method thereof Thomas Michael Lavertu, Adam Edgar Klingbeil, Omowoleola Chukwuemeka Akinyemi, Victor Manuel Salazar 2020-02-25
10557430 Oil carryover reduction system Adam Edgar Klingbeil, Thomas Michael Lavertu 2020-02-11
10337347 Method and systems for an energy recovery and energy converting unit for an engine James Robert Mischler, Thomas Michael Lavertu 2019-07-02 $20,882,000
10294846 Systems for vehicle particulate filter regeneration Daniel George Norton, Thomas Michael Lavertu 2019-05-21 $26,905,000
10190509 System and method for controlling a dual fuel engine Thomas Michael Lavertu, Adam Edgar Klingbeil, James Robert Mischler 2019-01-29 $22,532,000
10183683 Vehicle control system Thomas Michael Lavertu, Jennifer Lynn Jackson 2019-01-22 $14,601,000
10119460 Integrated turboshaft engine Adam Edgar Klingbeil, Narendra Digamber Joshi, Omowoleola Chukwuemeka Akinyemi, Thomas Michael Lavertu 2018-11-06 $22,627,000
10094324 System and method of operating an internal combustion engine Thomas Michael Lavertu, Adam Edgar Klingbeil, Omowoleola Chukwuemeka Akinyemi, Venu Gopal Gummadavelli, Barry Record +1 more 2018-10-09 $20,064,000