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

Donald J. Dignan

TEThe Eastern: 6 patents #26 of 119Top 25%
South Euclid, OH: #36 of 185 inventorsTop 20%
Ohio: #13,499 of 73,341 inventorsTop 20%
Overall (All Time): #895,646 of 4,157,543Top 25%
6 Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
4714283 Clamping type cabinet lock 1987-12-22
D281665 Combined latch operating handle and handle housing Lee S. Weinerman, Michael J. Rachocki 1985-12-10
4492394 Adjustable-grip latch 1985-01-08
D276716 Folding step 1984-12-11
4462486 Folding foot step 1984-07-31
4335595 Paddle lock with handle disconnect Jye P. Swan, John V. Pastva 1982-06-22