Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
DH

David A. Hamlin — 8 Patents

UNUnknown: 3 patents #7,366 of 83,584Top 9%
BUBritish Technology Group Usa: 1 patents #24 of 42Top 60%
Francestown, NH: #6 of 28 inventorsTop 25%
New Hampshire: #1,922 of 12,181 inventorsTop 20%
Overall (All Time): #600,572 of 4,157,543Top 15%
8 Patents All Time
David A. Hamlin has been granted 8 US patents while listed as an inventor at Unknown. The first was granted in 1985 and the most recent in February 2019. David A. Hamlin ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list David A. Hamlin in Francestown, NH, US.

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
10201582 Compositions and methods for alleviating hyposalivation and for providing oral comfort 2019-02-12
9884082 Compositions and methods for alleviating hyposalivation and for providing oral comfort 2018-02-06
9597278 Compositions and methods for alleviating hyposalivation and for providing oral comfort 2017-03-21
6168433 Direct drive dental prophy angle 2001-01-02
RE36434 Endoscopic device Arthur C. McKinley, William Habermann 1999-12-07
5690605 Endoscopic device Arthur C. McKinley, William Habermann 1997-11-25
5408992 Endoscopic device for intraoral use Arthur C. McKinley, William Habermann 1995-04-25
4542805 Automatically retractable, rotatable step assembly Melvin L. Glover 1985-09-24