Inventor · disambiguated record
Douglas L. Blocker
Also filed as: BLOCKER DOUGLAS · BLOCKER DOUGLAS L
13 granted patents·1 pending application·335 citations·filing 1994–2011
93Inventor score
Top patents by PatentIndex Score
14 records- 0194US7386915B2Dual motor upright vacuum cleanerTACONY CORP·Filed 2004·Granted Jun 17, 2008·75 cites·11 claims
- 0291USD518258SBrush roll for a vacuum cleanerTACONY CORP·Filed 2004·Granted Mar 28, 2006·48 cites·1 claims
- 0387US7805807B2Dual motor upright vacuum cleanerTACONY CORP·Filed 2008·Granted Oct 5, 2010·15 cites·19 claims
- 0483US7627927B2Vacuum cleaner with sensing systemTACONY CORP·Filed 2007·Granted Dec 8, 2009·19 cites·20 claims
- 0579USD370141STall book display rackANGELES GROUP INC·Filed 1994·Granted May 28, 1996·20 cites·1 claims
- 0674US5605389ACabinet, bookcase, locker and cubby structuresANGELES GROUP INC·Filed 1994·Granted Feb 25, 1997·44 cites·17 claims
- 0773US7310855B2Vacuum cleaner counter-balance mechanismTACONY CORP·Filed 2004·Granted Dec 25, 2007·20 cites·11 claims
- 0872US5447242ATall book display rackANGELES GROUP INC·Filed 1994·Granted Sep 5, 1995·37 cites·17 claims
- 0967US8393052B2Dual motor upright vacuum cleanerBLOCKER DOUGLAS L·Filed 2011·Granted Mar 12, 2013·3 cites·16 claims
- 1067US8020252B2Dual motor upright vacuum cleanerTACONY CORP·Filed 2010·Granted Sep 20, 2011·2 cites·20 claims
- 1166US5483904ALight weight table structuresANGELES GROUP INC·Filed 1994·Granted Jan 16, 1996·34 cites·16 claims
- 1257US7353563B2Vacuum cleaner height adjustmentTACONY CORP·Filed 2004·Granted Apr 8, 2008·9 cites·5 claims
- 1345US2006070204A1Flow control valve system for an upright vacuum cleaner with a cleaning hoseTACONY CORP·Filed 2004·Application pending·0 cites
- 1430US6022075AChair cushionANGELES GROUP INC·Filed 1997·Granted Feb 8, 2000·9 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →