Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Robert M. Wentzel — 5 Patents

ATAT&T: 5 patents #3,621 of 18,772Top 20%
American Telephone And Telegraph: 1 patents #132 of 699Top 20%
Mundelein, IL: #133 of 550 inventorsTop 25%
Illinois: #18,025 of 84,256 inventorsTop 25%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
Robert M. Wentzel has been granted 5 US patents while listed as an inventor at AT&T. The first was granted in 1985 and the most recent in November 2004. Robert M. Wentzel ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Robert M. Wentzel in Mundelein, IL, US.

Patents per Year

Patents granted per year, 1985 to 2004Bar chart with a peak of 1 patents in 1985.peak 11985: 1 patents19851987: 1 patents19871989: 1 patents19891991: 1 patents19912004: 1 patents2004

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6814607 Apparatus and method for guiding and aligning circuit board assemblies to a backplane 2004-11-09 $32,592,000
5074727 Threaded device retainer 1991-12-24
4859820 Quiet key switch Casimer Gotfryd, Stephen L. Kay, Hartland P. Klotz 1989-08-22
4704675 Method for velocity adjustment of ink jet nozzles in a nozzle array Norman A. Jacobs 1987-11-03
4516140 Print head actuator for an ink jet printer David B. Durkee, James P. Koller 1985-05-07