Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David J. Ricketts — 8 Patents

Pitney Bowes: 3 patents #498 of 1,313Top 40%
DEDevtech: 2 patents #2 of 2Top 100%
Irvine, CA: #1,244 of 6,241 inventorsTop 20%
California: #74,834 of 386,348 inventorsTop 20%
Overall (All Time): #600,572 of 4,157,543Top 15%
8 Patents All Time
David J. Ricketts has been granted 8 US patents while listed as an inventor at Devtech. The first was granted in 1996 and the most recent in November 2025. David J. Ricketts ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list David J. Ricketts in Irvine, CA, US.

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12466022 Mandrel for use in the machining of ophthalmic lenses Edward James Harley EVANS 2025-11-11
6544539 Composition and method for producing lubricating, germicide foam 2003-04-08
6348206 Composition and method for producing lubricating, germicide foam 2002-02-19
6206816 Method for inverting a folded collation Graham Trevor Cook, Richard A Baker, Jr. 2001-03-27 $33,420,000
5785638 Mailpiece handling apparatus Mark S. Bristo 1998-07-28 $10,361,000
5720984 Bovine teat dip 1998-02-24
5534266 Bovine teat dip 1996-07-09
5511357 Apparatus for controlling the position of an envelope in an inserter machine Keith Yates 1996-04-30 $17,569,000