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

Walter Ball

EAE.I. Du Pont De Nemours And: 1 patents #4,343 of 8,010Top 55%
The Procter & Gamble: 1 patents #6,322 of 10,133Top 65%
Heppenheim, OH: #1 of 1 inventorsTop 100%
Overall (All Time): #2,286,088 of 4,157,543Top 55%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5459028 Photographic material developable by heat treatment 1995-10-17
5407507 Method and apparatus for combining a tensioned elastic member with a moving substrate web 1995-04-18