Assignee
GRISWOLD MACHINE & ENG
5 granted patents·70 citations·filing 1976–2009
Top patents by PatentIndex Score
5 records- 0174US4056940ATrench box height adaptorGRISWOLD MACHINE & ENG·Filed 1976·Granted Nov 8, 1977·29 cites·20 claims
- 0265US3992887ATrench shoring assembly with force transferring accessoryGRISWOLD MACHINE & ENG·Filed 1976·Granted Nov 23, 1976·21 cites·6 claims
- 0350US6726416B2Die storage containerGRISWOLD MACHINE & ENG·Filed 2002·Granted Apr 27, 2004·10 cites·24 claims
- 0444US7945980B2Bridge deckGRISWOLD MACHINE & ENG·Filed 2009·Granted May 24, 2011·3 cites·22 claims
- 0543US7074002B2Parts container with in and out conveyors driven in unisonGRISWOLD MACHINE & ENG·Filed 2002·Granted Jul 11, 2006·7 cites·41 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →