Individual holder
GREENSPAN DONALD J
US·12 granted patents·685 citations·filing 1977–1984
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
12 records- 0198US4409988AApparatus for collecting culturesGREENSPAN DONALD J·Filed 1979·Granted Oct 18, 1983·152 cites·3 claims
- 0297US4202769AMethod for separating serum or plasma from the formed elements of bloodGREENSPAN DONALD J·Filed 1978·Granted May 13, 1980·98 cites·8 claims
- 0397US4189385AMethod and apparatus for separating serum or plasma from the formed elements of the bloodGREENSPAN DONALD J·Filed 1977·Granted Feb 19, 1980·122 cites·31 claims
- 0496US4209485AMethod of making a valve apparatusGREENSPAN DONALD J·Filed 1978·Granted Jun 24, 1980·70 cites·14 claims
- 0593US4530447ADispenserGREENSPAN DONALD J·Filed 1984·Granted Jul 23, 1985·93 cites·27 claims
- 0677US4459059ASliding cap with frictional engagementGREENSPAN DONALD J·Filed 1982·Granted Jul 10, 1984·30 cites·8 claims
- 0777US4429800AChild safe container-closure unitGREENSPAN DONALD J·Filed 1982·Granted Feb 7, 1984·42 cites·19 claims
- 0869US4247589ADecorative oxidation process and articleGREENSPAN DONALD J·Filed 1977·Granted Jan 27, 1981·19 cites·34 claims
- 0962US4454962AInsertable dispenserGREENSPAN DONALD J·Filed 1981·Granted Jun 19, 1984·27 cites·4 claims
- 1058US4375825AIntegral valve apparatusGREENSPAN DONALD J·Filed 1979·Granted Mar 8, 1983·15 cites·10 claims
- 1157US4219525AMethod and apparatus for closing tubesGREENSPAN DONALD J·Filed 1978·Granted Aug 26, 1980·15 cites·28 claims
- 1230US4392807AApparatus for closing tubesGREENSPAN DONALD J·Filed 1981·Granted Jul 12, 1983·2 cites·51 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →