Robert G. Sperry has been granted 14 US patents while listed as an inventor at Cummins . The first was granted in 2015 and the most recent in December 2024. Robert G. Sperry ranks #332,869 of 4,157,543 US inventors in our database (top 8.0%). Patent records list Robert G. Sperry in Columbus, IN, US.
Patents per Year Patents granted per year, 2015 to 2024 Bar chart with a peak of 4 patents in 2022. peak 4 2015: 1 patents 2015 2020: 1 patents 2020 2021: 3 patents 2021 2022: 4 patents 2022 2023: 3 patents 2023 2024: 2 patents 2024
Issued Patents All Time
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Showing 1–14 of 14 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
12163484 Piston, block assembly, and method for cooling — 2024-12-10
$64,660,000
12129810 System and method for deburred port holes in a two-stroke engine Jordan E. Kelleher , Jeffrey A. Wheitner , Jeffrey D. Olmstead , Myron T. Rickard , David J. Eckroth 2024-10-29
$38,310,000
11691120 Exhaust gas aftertreatment systems Chetan Kishorrao Chawane , Karan Shaileshkumar Chinaiwala , Enoch Nanduru 2023-07-04
11619150 Lubrication fluid storage system with venting — 2023-04-04
$64,444,000
11555469 Piston bowls Florin Mocanu , Eric M. Osecky , John M. Deur 2023-01-17
$39,542,000
D967863 Exhaust gas aftertreatment system Chetan Kishorrao Chawane , Karan Shaileshkumar Chinaiwala , Enoch Nanduru 2022-10-25
D967864 Exhaust gas aftertreatment system Chetan Kishorrao Chawane , Karan Shaileshkumar Chinaiwala , Enoch Nanduru 2022-10-25
11415075 Port shapes for enhanced engine breathing Randall L. Zehr 2022-08-16
$43,570,000
11402020 Piston with multiaxial bearing and piston bowl Kevin C. Augustin, Sr. , Florin Mocanu , Eric M. Osecky 2022-08-02
$27,088,000
11143149 Cobra head air intake ports Terry D. Partridge , Steven L. Leffler , Kartikeya Tyagi , Amit Kulkarni , Pallav Jha 2021-10-12
$29,133,000
11098681 Cobra head air intake ports and intake manifolds Terry D. Partridge , Steven L. Leffler , Kartikeya Tyagi , Amit Kulkarni , Pallav Jha 2021-08-24
$92,089,000
11047334 Intake chamber air diffusing feature in an opposed-piston engine James R. Shaw 2021-06-29
D877530 In-wall toilet paper container and dispenser — 2020-03-10
8950383 Gaseous fuel mixer for internal combustion engine — 2015-02-10