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

Robert Koenen — 67 Patents

BSBriggs & Stratton: 66 patents #1 of 502Top 1%
Pewaukee, WI: #4 of 359 inventorsTop 2%
Wisconsin: #197 of 40,088 inventorsTop 1%
Overall (All Time): #31,718 of 4,157,543Top 1%
67 Patents All Time
Robert Koenen has been granted 67 US patents while listed as an inventor at Briggs & Stratton. The first was granted in 2002 and the most recent in December 2025. Robert Koenen ranks #31,718 of 4,157,543 US inventors in our database (top 0.76%). Patent records list Robert Koenen in Pewaukee, WI, US.

Patents per Year

Patents granted per year, 2002 to 2025Bar chart with a peak of 9 patents in 2017.peak 92002: 1 patents20022012: 3 patents2013: 3 patents20132014: 4 patents2015: 3 patents20152016: 6 patents2017: 9 patents20172018: 7 patents2019: 8 patents20192020: 6 patents2021: 6 patents20212022: 4 patents2023: 3 patents20232024: 1 patents2025: 3 patents2025

Issued Patents All Time

Showing 1–25 of 67 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12500440 Vehicle for transporting and charging outdoor power equipment Scott Funke, Todd L. Johnson, Mark Noller, Nicholas Ziedler, Jacob Zuehl 2025-12-16
12349621 Zero turn radius mower with cutting blade control Jeffrey M. Zeiler 2025-07-08
12291091 User-scalable power unit including removable battery packs Jeffrey M. Zeiler, Jacob Schmalz, Albert Liu, Nick Zeidler, Scott Funke +1 more 2025-05-06
11859590 Battery pack for powering and controlling outdoor power equipment 2024-01-02
11820218 User-scalable power unit including removable battery packs Jeffrey M. Zeiler, Jacob Schmalz, Albert Liu, Nick Zeidler, Scott Funke +1 more 2023-11-21
11710981 Vehicle for transporting and charging outdoor power equipment Scott Funke, Todd W. Johnson, Mark Noller, Nicholas Ziedler, Jacob Zuehl 2023-07-25
11642952 User-scalable power unit including removable battery packs Jeffrey M. Zeiler, Jacob Schmalz, Albert Liu, Nick Zeidler, Scott Funke +1 more 2023-05-09
11519376 On-demand generator starting system Jason A. Hansen, Dale C. VanPatten, Jeffrey Berger, Philip Betzhold 2022-12-06
11425856 Zero turn radius mower with cutting blade control Jeffrey M. Zeiler 2022-08-30
11352964 Cylinder deactivation for a multiple cylinder engine Jason A. Hansen, Jacob Zuehl 2022-06-07
11346315 Battery pack for powering and controlling outdoor power equipment 2022-05-31
11193468 Electric starting system for an internal combustion engine Matthew Markowski, Michael Meyer, James Nommensen 2021-12-07
11111896 Starter motor with integrated solid state switch Jason A. Hansen 2021-09-07
11105279 On-demand generator starting system Jason A. Hansen, Dale C. VanPatten, Jeffrey Berger, Philip Betzhold 2021-08-31
11053906 Battery connections for battery start of internal combustion engines Jason A. Hansen, Andrew Paskov 2021-07-06
11022085 Engine operation detection system Jason J. Raasch, Christopher Meyers, Timothy Ogden, Kevin T. Bernier 2021-06-01
11015565 Battery pack for powering and controlling outdoor power equipment 2021-05-25
10871110 Engine governor Daniel Brueck 2020-12-22
10724492 Snowthrower with removable self-heating starter battery pack Jeffrey M. Zeiler, Dale Van Patten, Jason A. Hansen 2020-07-28
10697417 Battery connections for battery start of internal combustion engines Jason A. Hansen, Andrew Paskov 2020-06-30 $1,305,000
10687464 Zero turn radius mower controls Jeffrey M. Zeiler 2020-06-23 $1,395,000
10634041 Ignition system for internal combustion engine Andrew Paskov, Jason A. Hansen 2020-04-28 $1,823,000
10550819 Starter motor with integrated solid state switch Jason A. Hansen 2020-02-04 $2,423,000
10514013 Electric starting system for an internal combustion engine Matthew Markowski, Michael Meyer, James Nommensen 2019-12-24 $1,932,000
10514014 Ignition coil boost at low RPM Jason A. Hansen, Andrew Paskov 2019-12-24 $1,932,000