Inventor · disambiguated record
Donald J. Greenspan
Also filed as: GREENSPAN DONALD J
14 granted patents·849 citations·filing 1975–1984
95Inventor score
Top patents by PatentIndex Score
14 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
- 0595US4184483AMethod of and apparatus for collecting culturesU S MEDICAL RES & DEV INC·Filed 1977·Granted Jan 22, 1980·117 cites·34 claims
- 0693US4530447ADispenserGREENSPAN DONALD J·Filed 1984·Granted Jul 23, 1985·93 cites·27 claims
- 0787US4014746AMethod of and apparatus for collecting culturesU S MEDICAL RESEARCH AND DEV I·Filed 1975·Granted Mar 29, 1977·47 cites·22 claims
- 0877US4459059ASliding cap with frictional engagementGREENSPAN DONALD J·Filed 1982·Granted Jul 10, 1984·30 cites·8 claims
- 0977US4429800AChild safe container-closure unitGREENSPAN DONALD J·Filed 1982·Granted Feb 7, 1984·42 cites·19 claims
- 1069US4247589ADecorative oxidation process and articleGREENSPAN DONALD J·Filed 1977·Granted Jan 27, 1981·19 cites·34 claims
- 1162US4454962AInsertable dispenserGREENSPAN DONALD J·Filed 1981·Granted Jun 19, 1984·27 cites·4 claims
- 1258US4375825AIntegral valve apparatusGREENSPAN DONALD J·Filed 1979·Granted Mar 8, 1983·15 cites·10 claims
- 1357US4219525AMethod and apparatus for closing tubesGREENSPAN DONALD J·Filed 1978·Granted Aug 26, 1980·15 cites·28 claims
- 1430US4392807AApparatus for closing tubesGREENSPAN DONALD J·Filed 1981·Granted Jul 12, 1983·2 cites·51 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →