Inventor · disambiguated record
Charles R. Harris
Also filed as: HARRIS CHARLES R · HARRIS CHARLES RICHARD · HERRICK GEORGE R
6 granted patents·296 citations·filing 1976–1980
87Inventor score
Technology areasE21B
Files withSMITH INTERNATIONAL6
Top patents by PatentIndex Score
6 records- 0195US4343371AHybrid rock bitSMITH INTERNATIONAL·Filed 1980·Granted Aug 10, 1982·169 cites·5 claims
- 0271US4150728ARock drill bit inserts with hollow basesSMITH INTERNATIONAL·Filed 1977·Granted Apr 24, 1979·35 cites·7 claims
- 0367US4203496ALongitudinal axis roller drill bit with gage inserts protectionSMITH INTERNATIONAL·Filed 1978·Granted May 20, 1980·29 cites·8 claims
- 0465US4067406ASoft formation drill bitSMITH INTERNATIONAL·Filed 1976·Granted Jan 10, 1978·27 cites·10 claims
- 0561US4068731AExtended nozzle and bit stabilizer and method of producingSMITH INTERNATIONAL·Filed 1976·Granted Jan 17, 1978·23 cites·4 claims
- 0645US4231438AStraight hole insert drill bitSMITH INTERNATIONAL·Filed 1978·Granted Nov 4, 1980·13 cites·2 claims
Join the waitlist — get patent alerts
Get an alert when Charles R. Harris 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 →