Inventor · disambiguated record
Don B. Wafer
Also filed as: WAFER DON B
9 granted patents·157 citations·filing 1986–1997
90Inventor score
Files withFMC CORP9
Top patents by PatentIndex Score
9 records- 0177US5732731ASecondary seal bypass valve for gate valvesFMC CORP·Filed 1996·Granted Mar 31, 1998·40 cites·3 claims
- 0260US5221063ASelective double backseat for valve stemsFMC CORP·Filed 1992·Granted Jun 22, 1993·21 cites·15 claims
- 0359US4711262AUni-directional/bi-directional gate valveFMC CORP·Filed 1986·Granted Dec 8, 1987·19 cites·2 claims
- 0448US5511286AHandle with modular hubFMC CORP·Filed 1993·Granted Apr 30, 1996·14 cites·3 claims
- 0544US5730218ATool protection guide with energy absorbing bumperFMC CORP·Filed 1996·Granted Mar 24, 1998·19 cites·3 claims
- 0642US5404615AHandleFMC CORP·Filed 1992·Granted Apr 11, 1995·10 cites·5 claims
- 0739US4848777APressure energized/pressure intensified casing sealFMC CORP·Filed 1987·Granted Jul 18, 1989·18 cites·2 claims
- 0833US5896925ATool protection guideFMC CORP·Filed 1997·Granted Apr 27, 1999·9 cites·3 claims
- 0931US6007111ADual metal seal for wellhead housingFMC CORP·Filed 1995·Granted Dec 28, 1999·7 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →