Inventor · disambiguated record

Raymond A. Todd, Jr.

Also filed as: TODD JR RAYMOND A

2 granted patents·266 citations·filing 1989–1989

72Inventor score

Technology areasE21B

Files withDRILEX SYST INC2

Top patents by PatentIndex Score

2 records

0194US4962819AMud saver valve with replaceable inner sleeveDRILEX SYST INC·Filed 1989·Granted Oct 16, 1990·171 cites·14 claims
0287US4955949AMud saver valve with increased flow check valveDRILEX SYST INC·Filed 1989·Granted Sep 11, 1990·95 cites·20 claims

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