Inventor · disambiguated record
Douglas Morris
Also filed as: MORRIS DOUGLAS · MORRIS DOUGLAS D
5 granted patents·80 citations·filing 1986–2019
82Inventor score
Top patents by PatentIndex Score
5 records- 0190US10639577B1Clogged dust filter monitorFILTERSMARTS INC·Filed 2019·Granted May 5, 2020·20 cites·24 claims
- 0289US8744780B2Detector for clogged filtersWILSON JR DAVID J·Filed 2012·Granted Jun 3, 2014·17 cites·18 claims
- 0384US9061229B1Detector for clogged filtersFILTERSMARTS INC·Filed 2014·Granted Jun 23, 2015·6 cites·18 claims
- 0479USD325252SPortable air cleaner unitD MORRIS SHEET METAL INC·Filed 1990·Granted Apr 7, 1992·26 cites·1 claims
- 0561USD295216SCombined air filter and cleaner unitD MORRIS SHEET METAL INC·Filed 1986·Granted Apr 12, 1988·11 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →