Assignee
MARSH JR RICHARD O
5 granted patents·321 citations·filing 1975–1983
Top patents by PatentIndex Score
5 records- 0196US4274665AWedge-tight pipe couplingMARSH JR RICHARD O·Filed 1979·Granted Jun 23, 1981·136 cites·14 claims
- 0296US4053247ADouble sleeve pipe couplerMARSH JR RICHARD O·Filed 1976·Granted Oct 11, 1977·139 cites·22 claims
- 0366US4537534ADrive fit coupling for precast concrete pilesMARSH JR RICHARD O·Filed 1983·Granted Aug 27, 1985·21 cites·2 claims
- 0461US4389763AApparatus for joining pipe sections by jackingMARSH JR RICHARD O·Filed 1980·Granted Jun 28, 1983·17 cites·2 claims
- 0536US3958817ADouble tapered pipe couplingMARSH JR RICHARD O·Filed 1975·Granted May 25, 1976·8 cites·5 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →