Inventor · disambiguated record
Theodore R. Dysart
Also filed as: DYSART THEODORE R · DYSART THEODORE RIVERS
9 granted patents·452 citations·filing 1975–1994
92Inventor score
Files withDRESSER IND9
Top patents by PatentIndex Score
9 records- 0191US5027911ADouble seal with lubricant gap between seals for sealed rotary drill bitsDRESSER IND·Filed 1989·Granted Jul 2, 1991·60 cites·12 claims
- 0286US4688651ACone mouth debris exclusion shieldDRESSER IND·Filed 1986·Granted Aug 25, 1987·79 cites·14 claims
- 0382US5513715AFlat seal for a roller cone rock bitDRESSER IND·Filed 1994·Granted May 7, 1996·87 cites·9 claims
- 0482US3952815ALand erosion protection on a rock cutterDRESSER IND·Filed 1975·Granted Apr 27, 1976·51 cites·6 claims
- 0578US4249622AFloating seal for drill bitsDRESSER IND·Filed 1979·Granted Feb 10, 1981·44 cites·2 claims
- 0667US4981182ASealed rotary blast hole drill bit utilizing air pressure for seal protectionDRESSER IND·Filed 1990·Granted Jan 1, 1991·47 cites·32 claims
- 0762US4813502ADrilling bit with improved trailing edge ventDRESSER IND·Filed 1988·Granted Mar 21, 1989·32 cites·9 claims
- 0861US5441120ARoller cone rock bit having a sealing system with double elastomer sealsDRESSER IND·Filed 1994·Granted Aug 15, 1995·38 cites·20 claims
- 0941US4154313AFlow control valve for rock bitsDRESSER IND·Filed 1978·Granted May 15, 1979·14 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →