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

Guy Gardner Williamson — 4 Patents

JCJohn Crane: 3 patents #12 of 77Top 20%
PLPerkins Engines Company Limited: 1 patents #78 of 209Top 40%
Framingham, MA: #410 of 1,271 inventorsTop 35%
Massachusetts: #27,912 of 88,656 inventorsTop 35%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Guy Gardner Williamson has been granted 4 US patents while listed as an inventor at John Crane. The first was granted in 2000 and the most recent in October 2023. Guy Gardner Williamson ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Guy Gardner Williamson in Framingham, MA, US.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11801465 Filter arrangement for a selective catalytic reduction system Siddharth Subhash Gharpure 2023-10-31
6626436 Monitoring seal system Glenn G. Pecht 2003-09-30 $9,788,000
6325377 Rotary shaft monitoring seal system Amitava Datta, Luciano Rossi, Jackson Robert Ray Pressley 2001-12-04 $8,964,000
6082737 Rotary shaft monitoring seal system Amitava Datta, Luciano Rossi, Jackson Robert Ray Pressley 2000-07-04