Individual holder
OLSON DONALD O
11 granted patents·340 citations·filing 1979–2004
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
11 records- 0193US4392616ASelf-perforating drip irrigation deviceOLSON DONALD O·Filed 1981·Granted Jul 12, 1983·67 cites·3 claims
- 0292USD316367SGround stake for retaining irrigation conduitOLSON DONALD O·Filed 1988·Granted Apr 23, 1991·37 cites·1 claims
- 0390US4460129ATurbulent flow emitterOLSON DONALD O·Filed 1981·Granted Jul 17, 1984·61 cites·9 claims
- 0489US4944476AGround stake for retaining irrigation conduitOLSON DONALD O·Filed 1988·Granted Jul 31, 1990·59 cites·10 claims
- 0580US7111796B2Sprinkler apparatus and related methodsOLSON DONALD O·Filed 2004·Granted Sep 26, 2006·30 cites·21 claims
- 0678US5054690ADrip irrigation multi-outlet emitter head assemblyOLSON DONALD O·Filed 1990·Granted Oct 8, 1991·37 cites·10 claims
- 0772US6959818B2Filter and filter cleaning apparatus and related methodsOLSON DONALD O·Filed 2002·Granted Nov 1, 2005·15 cites·32 claims
- 0866US8028841B2Filter and filter cleaning apparatus and related methodsOLSON DONALD O·Filed 2004·Granted Oct 4, 2011·10 cites·9 claims
- 0947US4401273ATwo-piece low volume spray deviceOLSON DONALD O·Filed 1981·Granted Aug 30, 1983·13 cites·9 claims
- 1035US4275839ACombination stabilizer and sprinkler support for surface hoseOLSON DONALD O·Filed 1979·Granted Jun 30, 1981·6 cites·8 claims
- 1133US4582258ATwo-piece low volume spray deviceOLSON DONALD O·Filed 1983·Granted Apr 15, 1986·5 cites·2 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →