Assignee
HEPWORTH MINERALS & CHEMICALS
GB·3 granted patents·63 citations·filing 1987–1989
Top patents by PatentIndex Score
3 records- 0179US5041320ASurfacing compositionHEPWORTH MINERALS & CHEMICALS·Filed 1989·Granted Aug 20, 1991·48 cites·4 claims
- 0268US4848443APreparation of foundry molds or coresHEPWORTH MINERALS & CHEMICALS·Filed 1987·Granted Jul 18, 1989·15 cites·2 claims
- 0321US4952616ABindersHEPWORTH MINERALS & CHEMICALS·Filed 1988·Granted Aug 28, 1990·0 cites·12 claims
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