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

David Vang — 5 Patents

RDRaffel Product Development: 5 patents #1 of 6Top 20%
Sheboygan, WI: #147 of 549 inventorsTop 30%
Wisconsin: #9,054 of 40,088 inventorsTop 25%
Overall (All Time): #1,040,383 of 4,157,543Top 30%
5 Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6794841 Method of and apparatus for locking a powered movable furniture item Kenneth G. Seidl, Greg Elliott 2004-09-21
6492786 Method of and apparatus for locking a powered movable furniture item Kenneth G. Seidl, Greg Elliott 2002-12-10
6422992 Total body relaxation system and method Mark J. Raffel, Kenneth G. Seidl, Gregory Elliott 2002-07-23
5730707 Power supply for vibrating furniture 1998-03-24
D390965 Vibrator for use with furniture Mark J. Raffel, Kenneth G. Seidl 1998-02-17