Inventor · disambiguated record
Derek Woollatt
Also filed as: WOOLLATT DEREK
8 granted patents·1 pending application·59 citations·filing 1988–2003
86Inventor score
Top patents by PatentIndex Score
9 records- 0166US6655935B2Gas compressor comprising a double acting piston, an elongate chamber, multiple inlets mounted within heads on both sides of the chamber, and one central outletDRESSER RAND CO·Filed 2002·Granted Dec 2, 2003·11 cites·25 claims
- 0250US4913187ACompressor valve with flat springDRESSER IND·Filed 1988·Granted Apr 3, 1990·12 cites·3 claims
- 0340US5190262AHydraulically-operated valve assemblyDRESSER RAND CO·Filed 1991·Granted Mar 2, 1993·9 cites·9 claims
- 0437US2004018106A1Compressor and method with an improved inlet and discharge valve arrangementDRESSER RAND CO·Filed 2003·Application pending·0 cites
- 0535US5647730ASelf-contained, clearance-volume adjustment means for a gas compressorDRESSER RAND CO·Filed 1996·Granted Jul 15, 1997·7 cites·13 claims
- 0635US4984361AMethod of making a flat spring compressor valveDRESSER IND·Filed 1989·Granted Jan 15, 1991·5 cites·1 claims
- 0734US5378116AOver-pressure relief meansDRESSER RAND CO·Filed 1994·Granted Jan 3, 1995·5 cites·14 claims
- 0833US5100606AMethod of injection molding a plastic plateDRESSER IND·Filed 1990·Granted Mar 31, 1992·6 cites·3 claims
- 0932US5564906AMeans for moving a valve within a gas compressor having a straight cylinderDRESSER RAND CO·Filed 1995·Granted Oct 15, 1996·4 cites·9 claims
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