Inventor · disambiguated record
John H. Royce
Also filed as: ROYCE JOHN · ROYCE JOHN H
5 granted patents·100 citations·filing 1976–2012
82Inventor score
Files withCANHART IND INC1ROYCE JOHN1TRAVERSE CITY IRON WORKS1UNITED KINGDOM GOVERNMENT1WATEROUS CO1
Top patents by PatentIndex Score
5 records- 0184US4139931AAssembly method for fire hydrantsWATEROUS CO·Filed 1977·Granted Feb 20, 1979·35 cites·7 claims
- 0275US4073307AValve for fire hydrantsTRAVERSE CITY IRON WORKS·Filed 1976·Granted Feb 14, 1978·28 cites·19 claims
- 0362US9561459B2Method and apparatus for cleaning a filterROYCE JOHN·Filed 2012·Granted Feb 7, 2017·2 cites·18 claims
- 0450US4233780ADoor sealUNITED KINGDOM GOVERNMENT·Filed 1979·Granted Nov 18, 1980·19 cites·4 claims
- 0536US4893826AMobility support deviceCANHART IND INC·Filed 1987·Granted Jan 16, 1990·16 cites·36 claims
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