Individual holder
HOPKINS WALTER M
3 granted patents·10 citations·filing 1977–2011
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0167US8840353B2Vehicle mounted highway refuse collectorHOPKINS WALTER M·Filed 2011·Granted Sep 23, 2014·5 cites·14 claims
- 0225US4173439AApparatus having expanding and contracting chamberHOPKINS WALTER M·Filed 1977·Granted Nov 6, 1979·3 cites·14 claims
- 0323US4139336AExpansible chamber apparatus with pairs of cylindrical rollersHOPKINS WALTER M·Filed 1977·Granted Feb 13, 1979·2 cites·37 claims
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