Inventor · disambiguated record
Roger G. Johnston
Also filed as: JOHNSTON ROGER G
10 granted patents·1 pending application·284 citations·filing 1987–2006
91Inventor score
Top patents by PatentIndex Score
11 records- 0190US4764013AInterferometric apparatus and method for detection and characterization of particles using light scattered therefromUS ENERGY·Filed 1987·Granted Aug 16, 1988·90 cites·51 claims
- 0287US6588812B1Enhanced tamper indicatorUNIV CALIFORNIA·Filed 2001·Granted Jul 8, 2003·38 cites·25 claims
- 0380US6553930B1Tamper-indicating device having a glass bodyUNIV CALIFORNIA·Filed 2000·Granted Apr 29, 2003·20 cites·18 claims
- 0469US6394022B1Triboluminescent tamper-indicating deviceUNIV CALIFORNIA·Filed 2000·Granted May 28, 2002·9 cites·23 claims
- 0568US6293163B1Fluid sampling toolUNIV CALIFORNIA·Filed 1999·Granted Sep 25, 2001·36 cites·8 claims
- 0667US6784796B2Magnetic vector field tag and sealUNIV CALIFRONIA·Filed 2001·Granted Aug 31, 2004·21 cites·21 claims
- 0764US5907110AFluid sampling toolUNIV CALIFORNIA·Filed 1998·Granted May 25, 1999·30 cites·14 claims
- 0854US4906095AApparatus and method for performing two-frequency interferometryUS ENERGY·Filed 1988·Granted Mar 6, 1990·16 cites·25 claims
- 0952US2007198569A1Counterfeit detectionUNIV CALIFORNIA·Filed 2006·Application pending·0 cites
- 1047US5426977AMethod for establishing the presence of salmonella bacteria in eggsUNIV CALIFORNIA·Filed 1993·Granted Jun 27, 1995·13 cites·7 claims
- 1143US6065488AFluid sampling toolUNIV CALIFORNIA·Filed 1998·Granted May 23, 2000·11 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →