Inventor · disambiguated record
Douglas M. Collins
Also filed as: COLLINS DOUGLAS M
6 granted patents·169 citations·filing 1999–2004
84Inventor score
Top patents by PatentIndex Score
6 records- 0195US6491377B1High print quality printheadHEWLETT PACKARD CO·Filed 1999·Granted Dec 10, 2002·93 cites·35 claims
- 0283US6799822B2High quality fluid ejection deviceHEWLETT PACKARD DEVELOPMENT CO·Filed 2002·Granted Oct 5, 2004·19 cites·27 claims
- 0378US6132033AInkjet print head with flow control manifold and columnar structuresHEWLETT PACKARD CO·Filed 1999·Granted Oct 17, 2000·37 cites·41 claims
- 0461US6231168B1Ink jet print head with flow control manifold shapeHEWLETT PACKARD CO·Filed 1999·Granted May 15, 2001·17 cites·14 claims
- 0550US7004556B2High print quality inkjet printheadHEWLETT PACKARD DEVELOPMENT LP·Filed 2004·Granted Feb 28, 2006·3 cites·37 claims
- 0639US6662435B1Method of manufacturing an ink jet print headHEWLETT PACKARD DEVELOPMENT CO·Filed 2000·Granted Dec 16, 2003·0 cites·7 claims
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