Inventor · disambiguated record
Howard J. Schaeffer
Also filed as: SCHAEFFER HOWARD J · SCHAEFFER HOWARD JOHN · SCHAEFFER III HOWARD J
12 granted patents·490 citations·filing 1976–1993
93Inventor score
Top patents by PatentIndex Score
12 records- 0198US4199574AMethods and compositions for treating viral infections and guanine acyclic nucleosidesBURROUGHS WELLCOME CO·Filed 1976·Granted Apr 22, 1980·210 cites·81 claims
- 0296US4146715A2-amido-9-(2-acyloxyethoxymethyl)hypoxanthinesBURROUGHS WELLCOME CO·Filed 1977·Granted Mar 27, 1979·45 cites·5 claims
- 0394US4323573AAdenine derivativesBURROUGHS WELLCOME CO·Filed 1978·Granted Apr 6, 1982·46 cites·25 claims
- 0494US4287188APurine derivativesBURROUGHS WELLCOME CO·Filed 1978·Granted Sep 1, 1981·34 cites·53 claims
- 0592US4294831APurine derivativesBURROUGHS WELLCOME CO·Filed 1978·Granted Oct 13, 1981·34 cites·14 claims
- 0689US4360522APurine derivativesBURROUGHS WELLCOME CO·Filed 1978·Granted Nov 23, 1982·27 cites·16 claims
- 0782US4315920AAdenosine deaminase inhibitorsBURROUGHS WELLCOME CO·Filed 1980·Granted Feb 16, 1982·18 cites·6 claims
- 0879US4060616APurine derivatives with repeating unitBURROUGHS WELLCOME CO·Filed 1976·Granted Nov 29, 1977·9 cites·87 claims
- 0973US5248642ACatalytic cracking catalysts and additivesGRACE W R & CO·Filed 1992·Granted Sep 28, 1993·31 cites·18 claims
- 1071US4027025A8-Azapurine derivativesBURROUGHS WELLCOME CO·Filed 1976·Granted May 31, 1977·10 cites·31 claims
- 1167US4649140APurine derivativesBURROUGHS WELLCOME CO·Filed 1985·Granted Mar 10, 1987·7 cites·14 claims
- 1260US5364516ACatalytic cracking catalysts and additivesGRACE W R & CO·Filed 1993·Granted Nov 15, 1994·19 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →