Inventor · disambiguated record
Douglas Callahan
Also filed as: CALLAHAN DOUGLAS · CALLAHAN DOUGLAS J · CALLAHAN DOUGLAS JOHN
10 granted patents·1 pending application·169 citations·filing 2002–2021
90Inventor score
Files withMINIATURE PRECISION COMPONENTS INC6CALLAHAN DOUGLAS JOHN2CALLAHAN DOUGLAS1CALLAHAN DOUGLAS J1MINIATURE PREC COMPONENTS1
Top patents by PatentIndex Score
11 records- 0190US6546921B1Heated PCV valveMINIATURE PREC COMPONENTS·Filed 2002·Granted Apr 15, 2003·45 cites·20 claims
- 0287US7547350B2Air induction system with hydrocarbon trap assemblyMINIATURE PRECISION COMPONENTS INC·Filed 2005·Granted Jun 16, 2009·24 cites·52 claims
- 0387US7311088B1Passive evaporative emission control moduleMINIATURE PRECISION COMPONENTS INC·Filed 2006·Granted Dec 25, 2007·21 cites·17 claims
- 0484US7566079B1Duct couplingCALLAHAN DOUGLAS·Filed 2008·Granted Jul 28, 2009·25 cites·7 claims
- 0578US8297659B2Quick connector assemblyCALLAHAN DOUGLAS JOHN·Filed 2011·Granted Oct 30, 2012·11 cites·18 claims
- 0677US7316226B2Heated PCV systemMINIATURE PRECISION COMPONENTS INC·Filed 2005·Granted Jan 8, 2008·9 cites·4 claims
- 0773US7497478B2Duct assemblyMINIATURE PRECISION COMPONENTS INC·Filed 2004·Granted Mar 3, 2009·19 cites·11 claims
- 0870US7318424B2Integrated vapor management and rollover valve for a fuel tankMINIATURE PRECISION COMPONENTS INC·Filed 2005·Granted Jan 15, 2008·6 cites·22 claims
- 0969US7610905B2Passive evaporative emission control moduleCALLAHAN DOUGLAS J·Filed 2007·Granted Nov 3, 2009·6 cites·13 claims
- 1066US7762240B2Integrated vapor management and rollover valve for a fuel tankMINIATURE PRECISION COMPONENTS INC·Filed 2008·Granted Jul 27, 2010·3 cites·14 claims
- 1150US2022022670A1Item-containing pillowCALLAHAN DOUGLAS JOHN·Filed 2021·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →