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

Robert W. Simpson

CECelotex: 1 patents #48 of 77Top 65%
FLFoseco International Limited: 1 patents #68 of 196Top 35%
Richlands, VA: #4 of 33 inventorsTop 15%
Virginia: #6,192 of 34,511 inventorsTop 20%
Overall (All Time): #984,423 of 4,157,543Top 25%
5 Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
9932720 Excavator shearing implement 2018-04-03
6286580 Sand reclamation Stuart P. Ward 2001-09-11
6030559 Method for the continuous manufacture of plastic foam Leon F. Barry 2000-02-29
5273092 Device for storing and installing vehicular tire chains 1993-12-28
4877616 Process for preparing xerosin II and xerosin III, improved biological response modifiers Elizabeth S. Boylan, Robert J. Boylan, Vincent Groupe 1989-10-31