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

Michael Kerwin — 4 Patents

SASherwood Services Ag: 1 patents #139 of 258Top 55%
UNUnknown: 1 patents #29,356 of 83,584Top 40%
ATAT&T: 1 patents #10,636 of 18,772Top 60%
Hancock, NY: #1 of 2 inventorsTop 50%
New York: #31,814 of 115,490 inventorsTop 30%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Michael Kerwin has been granted 4 US patents while listed as an inventor at AT&T. The first was granted in 1989 and the most recent in May 2021. Michael Kerwin ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Michael Kerwin in Hancock, NY, US.

Patents per Year

Patents granted per year, 1989 to 2021Bar chart with a peak of 1 patents in 1989.peak 11989: 1 patents19891997: 1 patents19972003: 1 patents20032021: 1 patents2021

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10996167 Container with luminescent sunscreen and closure with illuminator 2021-05-04
6619837 Probe cover with lubrication well James L. Walls, Loren Lantz 2003-09-16
5625673 Modular communication apparatus Anthony J. Grewe, Carl Scotius Ledbetter, Jr., B. Waring Partridge, III 1997-04-29 $9,012,000
4850109 Adaptor to convert a chain saw to a circular saw 1989-07-25