Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
DK

David A. Kelley

PDProgressive Dynamics: 3 patents #10 of 24Top 45%
KFKraft General Foods: 1 patents #132 of 377Top 40%
Marshall, MI: #30 of 157 inventorsTop 20%
Michigan: #13,574 of 86,293 inventorsTop 20%
Overall (All Time): #691,575 of 4,157,543Top 20%
7 Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
11911774 Carpet recycling process and method 2024-02-27
5527498 Method for production of high density ammonium nitrate prills 1996-06-18
5486246 High density ammonium nitrate prill and method of production of the same 1996-01-23
5384148 Caramel confections and processes for preparing and using William R. Lynch, Larry D. Smith, Matthew J. Wiant, Robert R. Bianca 1995-01-24
D315216 Recreational vehicle interior light fixture Dan Walters, James G. Stephenson 1991-03-05
D304088 Door operated convenience light for storage areas Delbert J. Corkins, Robert S. Hileman 1989-10-17
4872099 Light fixture Dan Walters, James G. Stephenson 1989-10-03