Assignee
PRATT CO HENRY
US·6 granted patents·98 citations·filing 1974–2001
Top patents by PatentIndex Score
6 records- 0173US5069240AFlexible seating structure for rotary valvesPRATT CO HENRY·Filed 1990·Granted Dec 3, 1991·41 cites·17 claims
- 0270US3958314ASeal for butterfly valvesPRATT CO HENRY·Filed 1974·Granted May 25, 1976·24 cites·7 claims
- 0359US6543747B2Valve actuator apparatusPRATT CO HENRY·Filed 2000·Granted Apr 8, 2003·13 cites·13 claims
- 0452US5538029AMethod for adjusting valve sealing engagementPRATT CO HENRY·Filed 1995·Granted Jul 23, 1996·17 cites·3 claims
- 0528US6598850B2Butterfly valve locking apparatusPRATT CO HENRY·Filed 2001·Granted Jul 29, 2003·0 cites·14 claims
- 0628US3934850AAdjustable valve seatPRATT CO HENRY·Filed 1974·Granted Jan 27, 1976·3 cites·5 claims
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