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

David Stewart

RARarecyte: 19 patents #5 of 22Top 25%
Xerox: 4 patents #2,608 of 8,622Top 35%
ZEZenith Electronics: 3 patents #112 of 411Top 30%
Williamsville, NY: #14 of 663 inventorsTop 3%
New York: #4,427 of 115,490 inventorsTop 4%
Overall (All Time): #133,876 of 4,157,543Top 4%
28 Patents All Time

Issued Patents All Time

Showing 26–28 of 28 patents

Patent #TitleCo-InventorsDate
5572381 Mechanical power transmission for a simplified video cassette recorder apparatus 1996-11-05
5444584 Video cassette tape protection device consisting of an enclosure having walls substantially bounding the tape path in a video cassette player/recorder 1995-08-22
4253717 CRT Socket 1981-03-03