Inventor · disambiguated record
Gregory L. Johnston
Also filed as: JOHNSTON GREGORY · JOHNSTON GREGORY L
15 granted patents·1 pending application·207 citations·filing 1994–2023
93Inventor score
Files withWESTINGHOUSE AIR BRAKE CO11BAYER HEALTHCARE LLC2JOHNSTON GREGORY L1WESTINGHOUSE AIR BRAKE TECH CORP1
Top patents by PatentIndex Score
16 records- 0196US6009902ADual valve fitting for enabling quick measurement of pressureWESTINGHOUSE AIR BRAKE CO·Filed 1998·Granted Jan 4, 2000·89 cites·4 claims
- 0290US11547793B2Fluid injector with syringe engagement mechanismBAYER HEALTHCARE LLC·Filed 2017·Granted Jan 10, 2023·12 cites·19 claims
- 0389US10364590B1Fence post puller and puller-driver combinationJOHNSTON GREGORY L·Filed 2016·Granted Jul 30, 2019·8 cites·15 claims
- 0468US2023158229A1Fluid injector with syringe engagement mechanismBAYER HEALTHCARE LLC·Filed 2023·Application pending·0 cites
- 0564US5634696ARailway brake pipe bracket with access portsFiled 1995·Granted Jun 3, 1997·18 cites·17 claims
- 0662US5503011ATest connector for automatic test deviceWESTINGHOUSE AIR BRAKE CO·Filed 1994·Granted Apr 2, 1996·13 cites·16 claims
- 0759US5869754ADual seal coupling apparatus for enabling quick measurement of brake cylinder pressureWESTINGHOUSE AIR BRAKE CO·Filed 1997·Granted Feb 9, 1999·15 cites·14 claims
- 0847US6416059B1Brass insert molded into “church window” of service accelerated release valve gasketWESTINGHOUSE AIR BRAKE TECH CORP·Filed 2001·Granted Jul 9, 2002·2 cites·22 claims
- 0944US5869765ADual seal fitting for enabling quick measurement of brake cylinder pressureWESTINGHOUSE AIR BRAKE CO·Filed 1997·Granted Feb 9, 1999·11 cites·21 claims
- 1041US6164312APurge valveWESTINGHOUSE AIR BRAKE CO·Filed 1999·Granted Dec 26, 2000·10 cites·20 claims
- 1139US6070854ADual valve fitting for enabling quick measurement of pressureWESTINGHOUSE AIR BRAKE CO·Filed 1997·Granted Jun 6, 2000·7 cites·4 claims
- 1237US6089268ADual valve fitting for enabling quick measurement of pressureWESTINGHOUSE AIR BRAKE CO·Filed 1998·Granted Jul 18, 2000·6 cites·6 claims
- 1337US5952566ADual valve apparatus for enabling quick measurement of pressureWESTINGHOUSE AIR BRAKE CO·Filed 1997·Granted Sep 14, 1999·7 cites·19 claims
- 1433US6170511B1Normally open purge valveWESTINGHOUSE AIR BRAKE CO·Filed 1999·Granted Jan 9, 2001·4 cites·21 claims
- 1533US5518304AFilter arrangement and mounting in railway brake pipe bracketWESTINGHOUSE AIR BRAKE CO·Filed 1994·Granted May 21, 1996·3 cites·7 claims
- 1631US6029700ADual valve fitting for enabling quick measurement of pressureWESTINGHOUSE AIR BRAKE CO·Filed 1998·Granted Feb 29, 2000·2 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →