Inventor · disambiguated record
David J. Spyker
Also filed as: SPYKER DAVID J
5 granted patents·89 citations·filing 1992–1995
82Inventor score
Files withJWI INC5
Top patents by PatentIndex Score
5 records- 0157US5567327AAir-assist discharge of filter press cakeJWI INC·Filed 1993·Granted Oct 22, 1996·22 cites·15 claims
- 0253US5328617AAir-assist discharge of filter press cakeJWI INC·Filed 1992·Granted Jul 12, 1994·20 cites·18 claims
- 0346US5635061APlate shifter mechanismJWI INC·Filed 1995·Granted Jun 3, 1997·19 cites·15 claims
- 0446US5275740AFilter press with adaptive automated control arrangementJWI INC·Filed 1992·Granted Jan 4, 1994·18 cites·16 claims
- 0540US5456022ABatch-type sludge drierJWI INC·Filed 1992·Granted Oct 10, 1995·10 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →