Assignee
ENVIRONMENTAL RES & TECH
9 granted patents·230 citations·filing 1974–1985
Top patents by PatentIndex Score
9 records- 0190US4537682AActivated sludge wastewater treating processENVIRONMENTAL RES & TECH·Filed 1983·Granted Aug 27, 1985·102 cites·128 claims
- 0289US4485007AProcess for purifying hydrocarbonaceous oilsENVIRONMENTAL RES & TECH·Filed 1982·Granted Nov 27, 1984·63 cites·17 claims
- 0375US4059356AGas detectorENVIRONMENTAL RES & TECH·Filed 1976·Granted Nov 22, 1977·18 cites·20 claims
- 0465US4397025ADual frequency laserENVIRONMENTAL RES & TECH·Filed 1980·Granted Aug 2, 1983·15 cites·16 claims
- 0554US3997240AOptical system using light equalizer with partially reflective plane surfacesENVIRONMENTAL RES & TECH·Filed 1975·Granted Dec 14, 1976·11 cites·14 claims
- 0648US4605313AInfrared detector for NDIR gas analysisENVIRONMENTAL RES & TECH·Filed 1985·Granted Aug 12, 1986·12 cites·15 claims
- 0746US3970375ALight equalizerENVIRONMENTAL RES & TECH·Filed 1974·Granted Jul 20, 1976·7 cites·1 claims
- 0831US4112028ALight equalizer and method of making sameENVIRONMENTAL RES & TECH·Filed 1974·Granted Sep 5, 1978·2 cites·2 claims
- 0926US4111731AMethod of making a light equalizerENVIRONMENTAL RES & TECH·Filed 1974·Granted Sep 5, 1978·0 cites·2 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →