Assignee
RETRUM ROWLAND
5 granted patents·87 citations·filing 1978–1993
Top patents by PatentIndex Score
5 records- 0172US4286884AApparatus for hydrolyzing keratinaceous materialRETRUM ROWLAND·Filed 1980·Granted Sep 1, 1981·41 cites·9 claims
- 0257US5322009AApparatus for metered infeeding, compacting as required, and pumping to elevated pressure tough long-stranded material of little fluidity, such as raw feathersRETRUM ROWLAND·Filed 1993·Granted Jun 21, 1994·13 cites·15 claims
- 0357US4378311AMethod for hydrolyzing keratinaceous materialRETRUM ROWLAND·Filed 1980·Granted Mar 29, 1983·15 cites·13 claims
- 0449US4497733AApparatus for hydrolyzing keratinaceous materialRETRUM ROWLAND·Filed 1982·Granted Feb 5, 1985·10 cites·4 claims
- 0542US4231926AMethod and apparatus for hydrolyzing keratinaceous materialRETRUM ROWLAND·Filed 1978·Granted Nov 4, 1980·8 cites·10 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →