Inventor · disambiguated record
Charles Perkins
Also filed as: PERKINS CHARLES · PERKINS CHARLES W
8 granted patents·1 pending application·119 citations·filing 1976–2010
87Inventor score
Top patents by PatentIndex Score
9 records- 0179US7459677B2Mass spectrometer for trace gas leak detection with suppression of undesired ionsVARIAN INC·Filed 2006·Granted Dec 2, 2008·7 cites·8 claims
- 0279US4093351AControlled flexible membrane reflectorPERKINS CHARLES W·Filed 1976·Granted Jun 6, 1978·56 cites·13 claims
- 0376US6835048B2Ion pump having secondary magnetic fieldVARIAN INC·Filed 2002·Granted Dec 28, 2004·12 cites·10 claims
- 0475US7290439B2Methods and apparatus for leak detection by the accumulation methodVARIAN INC·Filed 2004·Granted Nov 6, 2007·19 cites·18 claims
- 0571US7427751B2High sensitivity slitless ion source mass spectrometer for trace gas leak detectionVARIAN INC·Filed 2006·Granted Sep 23, 2008·4 cites·16 claims
- 0661US7204127B2Method and apparatus for large leak testingVARIAN INC·Filed 2004·Granted Apr 17, 2007·10 cites·18 claims
- 0756US7500381B2Systems and methods for trace gas leak detection of large leaks at relatively high test pressuresVARIAN INC·Filed 2006·Granted Mar 10, 2009·4 cites·17 claims
- 0854US7320243B2Methods and apparatus for detection of large leaks in sealed articlesVARIAN INC·Filed 2004·Granted Jan 22, 2008·7 cites·13 claims
- 0927US2011290006A1Leak test probe for use in industrial facilitiesPERKINS CHARLES·Filed 2010·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Charles Perkins files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →