Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David W. Procknow — 32 Patents

BSBriggs & Stratton: 30 patents #4 of 502Top 1%
GIGas Research Institute: 2 patents #168 of 808Top 25%
Elm Grove, WI: #5 of 140 inventorsTop 4%
Wisconsin: #910 of 40,088 inventorsTop 3%
Overall (All Time): #110,428 of 4,157,543Top 3%
32 Patents All Time
David W. Procknow has been granted 32 US patents while listed as an inventor at Briggs & Stratton. The first was granted in 1993 and the most recent in May 2025. David W. Procknow ranks #110,428 of 4,157,543 US inventors in our database (top 2.7%). Patent records list David W. Procknow in Elm Grove, WI, US.

Issued Patents All Time

Showing 1–25 of 32 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12291091 User-scalable power unit including removable battery packs Jeffrey M. Zeiler, Robert Koenen, Jacob Schmalz, Albert Liu, Nick Zeidler +1 more 2025-05-06
11913417 Internal combustion engine with electric starting system Mark Meyer 2024-02-27
11820218 User-scalable power unit including removable battery packs Jeffrey M. Zeiler, Robert Koenen, Jacob Schmalz, Albert Liu, Nick Zeidler +1 more 2023-11-21
11642952 User-scalable power unit including removable battery packs Jeffrey M. Zeiler, Robert Koenen, Jacob Schmalz, Albert Liu, Nick Zeidler +1 more 2023-05-09
11639681 Internal combustion engine with electric starting system Mark Meyer, James Michael Busse 2023-05-02
11610464 Portable generator including carbon monoxide detector Ryan D. Janscha, Brandon Nigh, Mark Willer 2023-03-21
11591984 Engine with control unit for lean burn operation Jacob Zuehl 2023-02-28
11578689 Internal combustion engine with electric starting system Mark Meyer 2023-02-14
11477939 Mower deck insert Jeffrey M. Zeiler, Kenneth W. Derra, Scott Funke, Rodney Balzar 2022-10-25
11408326 Internal combustion engine with electric starting system Mark Meyer, James Michael Busse 2022-08-09
11371461 Engine with control unit for lean burn operation Jacob Zuehl 2022-06-28
11085412 Internal combustion engine with electric starting system Mark Meyer 2021-08-10
11002234 Fuel delivery injector Michael Pitcel, Jacob Zuehl, David A. Kratz 2021-05-11
10677205 Fuel delivery injector Michael Pitcel, Jacob Zuehl, David A. Kratz 2020-06-09 $2,474,000
10539112 Internal combustion engine with electric starting system Mark Meyer 2020-01-21 $3,838,000
10475319 Portable generator including carbon monoxide detector Ryan D. Janscha, Brandon Nigh, Mark Willer 2019-11-12 $4,339,000
10319207 Portable generator including carbon monoxide detector Ryan D. Janscha, Brandon Nigh, Mark Willer 2019-06-11 $3,825,000
10197025 Fuel delivery injector Michael Pitcel, Jacob Zuehl, David A. Kratz 2019-02-05 $4,312,000
9945281 Cooling system for air-cooled engines Michael Pitcel, Jacob Zuehl 2018-04-17 $2,800,000
9828966 Lawn mower starter system Jason A. Hansen, Robert Koenen, Stephen J. Lavender, Jason D. Elvers 2017-11-28 $6,762,000
9759175 Starter system for an engine Jason A. Hansen, Robert Koenen, Stephen J. Lavender, Jason D. Elvers 2017-09-12 $5,881,000
9267482 Starter system for an engine Jason A. Hansen, Robert Koenen, Stephen J. Lavender, Jason D. Elvers 2016-02-23 $3,165,000
9220192 Lawn mower starter system Jason A. Hansen, Robert Koenen, Stephen J. Lavender, Jason D. Elvers 2015-12-29 $4,910,000
8863485 Hybrid lawn mower drive system Michael Pitcel, William Latus, Robert Koenen, Jeffrey Berger, Jason D. Elvers 2014-10-21 $2,322,000
8857138 Starter system for an engine Jason A. Hansen, Robert Koenen, Stephen J. Lavender, Jason D. Elvers 2014-10-14 $4,635,000