Inventor · disambiguated record
Donald O. Parker
Also filed as: PARKER DONALD · PARKER DONALD O
10 granted patents·379 citations·filing 1982–1994
92Inventor score
Top patents by PatentIndex Score
10 records- 0182US5056644ACoin analyzer system and apparatusPARKER DONALD O·Filed 1989·Granted Oct 15, 1991·64 cites·12 claims
- 0281US5439089ACoin analyzer sensor configuration and systemFiled 1993·Granted Aug 8, 1995·64 cites·23 claims
- 0377US4884672ACoin analyzer system and apparatusPARKER ENGINEERING & MANUFACTU·Filed 1988·Granted Dec 5, 1989·58 cites·40 claims
- 0473US4469213ACoin detector systemNICHOLSON RAYMOND·Filed 1982·Granted Sep 4, 1984·43 cites·5 claims
- 0572US4437558ACoin detector apparatusNICHOLSON RAYMOND·Filed 1983·Granted Mar 20, 1984·49 cites·7 claims
- 0668US5293980ACoin analyzer sensor configuration and systemPARKER DONALD O·Filed 1992·Granted Mar 15, 1994·37 cites·33 claims
- 0763US5226520ACoin detector systemPARKER DONALD O·Filed 1991·Granted Jul 13, 1993·33 cites·39 claims
- 0850US4926997AApparatus and method for restarting a coin operated device after expiration of timePARKER DONALD O·Filed 1988·Granted May 22, 1990·17 cites·18 claims
- 0940US4905814ACoil configuration for electronic coin tester and method of makingCOIN MECHANISMS INC·Filed 1988·Granted Mar 6, 1990·10 cites·3 claims
- 1030US5566808ALow profile coin analyzer apparatusPARKER ENGINEERING & MANUFACTU·Filed 1994·Granted Oct 22, 1996·4 cites·19 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →