Assignee
ERMA OPTICAL WORKS
JP·4 granted patents·143 citations·filing 1983–1985
Top patents by PatentIndex Score
4 records- 0191US4469495AMethod and device for degassifying liquidERMA OPTICAL WORKS·Filed 1983·Granted Sep 4, 1984·84 cites·17 claims
- 0277US4629561ALiquid chromatograph with flow controllerERMA OPTICAL WORKS·Filed 1985·Granted Dec 16, 1986·43 cites·1 claims
- 0343US4651087AApparatus for measuring impurities in ultrapure waterERMA OPTICAL WORKS·Filed 1984·Granted Mar 17, 1987·9 cites·3 claims
- 0434US4680552AApparatus for measuring impurities in super-pure water without exposure to surrounding atmosphereERMA OPTICAL WORKS·Filed 1985·Granted Jul 14, 1987·7 cites·4 claims
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →