Inventor · disambiguated record
Jeffrey H. Birk
Also filed as: BIRK JEFFREY H
5 granted patents·41 citations·filing 1988–2006
75Inventor score
Top patents by PatentIndex Score
5 records- 0178US5182397AAryloxyspiroalkylindolinone herbicidesAMERICAN CYANAMID CO·Filed 1991·Granted Jan 26, 1993·21 cites·5 claims
- 0275US4992092AMethod for safening gramineous crops against pyridine imidazolinone herbicidesAMERICAN CYANAMID CO·Filed 1988·Granted Feb 12, 1991·18 cites·8 claims
- 0350US8080497B2Method of controlling the aquatic weed Hydrilla verticillataZAWIERUCHA JOSEPH·Filed 2006·Granted Dec 20, 2011·0 cites·16 claims
- 0446US9060516B2Method for controlling aquatic weedsZAWIERUCHA JOSEPH·Filed 2006·Granted Jun 23, 2015·0 cites·10 claims
- 0542US5076835AAryloxyspiroalkylindolinone herbicidesAMERICAN CYANAMID CO·Filed 1990·Granted Dec 31, 1991·2 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →