Inventor · disambiguated record
Douglas E. Alexander
Also filed as: ALEXANDER DOUGLAS E
7 granted patents·70 citations·filing 1980–2006
83Inventor score
Top patents by PatentIndex Score
7 records- 0188US8006443B2Interlocking modular floor tileTENNESSEE MAT COMPANY INC·Filed 2005·Granted Aug 30, 2011·34 cites·37 claims
- 0286US7322052B2Dispensing apparatus for a toiletALEXANDER DOUGLAS E·Filed 2006·Granted Jan 29, 2008·18 cites·20 claims
- 0344USD520650SSection of interlocking modular floor tileTENNESSEE MAT COMPANY INC·Filed 2004·Granted May 9, 2006·6 cites·1 claims
- 0443US4553869ABuckling one way clutchIBM·Filed 1983·Granted Nov 19, 1985·7 cites·11 claims
- 0533US4401393APrinter ribbon cassette and feed mechanismIBM·Filed 1982·Granted Aug 30, 1983·2 cites·7 claims
- 0631US5516217ADocument guiding ribbon cartridgeIBM·Filed 1995·Granted May 14, 1996·1 cites·4 claims
- 0726US4354085APipe welder with improved seam spreaderUNITED STATES STEEL CORP·Filed 1980·Granted Oct 12, 1982·2 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →