Assignee
HYDROTILE MACHINERY
US·7 granted patents·138 citations·filing 1974–1989
Top patents by PatentIndex Score
7 records- 0167US4340553AMachine and method for making concrete productHYDROTILE MACHINERY·Filed 1980·Granted Jul 20, 1982·25 cites·46 claims
- 0262US4957424AConcrete pipe making machineHYDROTILE MACHINERY·Filed 1989·Granted Sep 18, 1990·21 cites·48 claims
- 0361US4407648ACounter rotating packerhead assemblyHYDROTILE MACHINERY·Filed 1982·Granted Oct 4, 1983·20 cites·26 claims
- 0456US4690631APackerhead with elastic rollersHYDROTILE MACHINERY·Filed 1986·Granted Sep 1, 1987·25 cites·26 claims
- 0553US3948354ALubricator for concrete pipe vibratorsHYDROTILE MACHINERY·Filed 1974·Granted Apr 6, 1976·17 cites·35 claims
- 0651US4630988ABulk material hopperHYDROTILE MACHINERY·Filed 1984·Granted Dec 23, 1986·17 cites·15 claims
- 0747US4639342ACombined concrete feed and packerhead lift controlHYDROTILE MACHINERY·Filed 1986·Granted Jan 27, 1987·13 cites·15 claims
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