Assignee
HILL AND GRIFFITH COMPANY
US·4 granted patents·28 citations·filing 1986–2004
Top patents by PatentIndex Score
4 records- 0173US6811810B2Concrete form release compositionsHILL AND GRIFFITH COMPANY·Filed 2002·Granted Nov 2, 2004·10 cites·21 claims
- 0266US4676997ASand casting pattern coating compositionsHILL AND GRIFFITH COMPANY·Filed 1986·Granted Jun 30, 1987·12 cites·4 claims
- 0359US6960367B2Sandcasting pattern coating compositionsHILL AND GRIFFITH COMPANY·Filed 2002·Granted Nov 1, 2005·4 cites·22 claims
- 0451US7507284B2Sandcasting pattern coating compositions containing graphiteHILL AND GRIFFITH COMPANY·Filed 2004·Granted Mar 24, 2009·2 cites·18 claims
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