Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Philip E. Perkins — 4 Patents

LTLtx: 3 patents #17 of 50Top 35%
LCLtx Credence: 1 patents #4 of 15Top 30%
Needham, MA: #290 of 796 inventorsTop 40%
Massachusetts: #27,912 of 88,656 inventorsTop 35%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Philip E. Perkins has been granted 4 US patents while listed as an inventor at Ltx. The first was granted in 2002 and the most recent in June 2011. Philip E. Perkins ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Philip E. Perkins in Needham, MA, US.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7969177 System and method for thermal limit control Stephen Frederick Limoges, Jr., Xiaomin Yan, James W. McGinley, Roger Therrien 2011-06-28 $5,834,000
7664621 System and method for mapping system transfer functions Richard Liggiero, III, Alan J. Reiss 2010-02-16 $9,461,000
6625557 Mixed signal device under test board interface William R. Creek, David W. Curry 2003-09-23 $12,759,000
6489797 Test system including a test head with integral device for generating and measuring output having variable current or voltage characteristics Bruce MacDonald 2002-12-03 $7,994,000