Assignee
SIGMA CHEM CO
11 granted patents·180 citations·filing 1975–1991
Top patents by PatentIndex Score
11 records- 0185US3964865ALyophilized human hemoglobin standard for colorimetric determination of total hemoglobinSIGMA CHEM CO·Filed 1975·Granted Jun 22, 1976·47 cites·11 claims
- 0279US4030995AAlkaline phosphatase isoenzyme determinationSIGMA CHEM CO·Filed 1976·Granted Jun 21, 1977·32 cites·18 claims
- 0367US4816244AStabilized stain solutions containing aliphatic and aromatic alcoholsSIGMA CHEM CO·Filed 1986·Granted Mar 28, 1989·29 cites·2 claims
- 0453US4151043AEnzyme determination methodSIGMA CHEM CO·Filed 1976·Granted Apr 24, 1979·11 cites·12 claims
- 0551US5221611ADdi immunoassays, derivatives, conjugates and antibodiesSIGMA CHEM CO·Filed 1991·Granted Jun 22, 1993·12 cites·48 claims
- 0651US4539118ARapid, accurate method of separation of oxalate from urine and other biological fluidsSIGMA CHEM CO·Filed 1984·Granted Sep 3, 1985·18 cites·20 claims
- 0742US5380825AAZT immunoassays, derivatives, conjugates and antibodiesSIGMA CHEM CO·Filed 1991·Granted Jan 10, 1995·9 cites·22 claims
- 0842US5051361AAZT immunoassays, derivatives, conjugates and antibodiesSIGMA CHEM CO·Filed 1988·Granted Sep 24, 1991·8 cites·20 claims
- 0941US4211531AColorimetric cholesterol assaySIGMA CHEM CO·Filed 1979·Granted Jul 8, 1980·8 cites·11 claims
- 1038US4030885ABilirubin determinationSIGMA CHEM CO·Filed 1975·Granted Jun 21, 1977·6 cites·8 claims
- 1126US3985506AReagent and method for determination of globulinSIGMA CHEM CO·Filed 1975·Granted Oct 12, 1976·0 cites·19 claims
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