DA

Donavan J. Allen

TO Torus: 3 patents #4 of 16Top 25%
UN Unknown: 2 patents #12,644 of 83,584Top 20%
VO Vortex: 2 patents #4 of 6Top 70%
Overall (All Time): #462,106 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
9326484 Fluid cleaning device 2016-05-03
9144359 Carpet cleaning device Albert W. Gebhard 2015-09-29
7788765 Air recirculating surface cleaning device 2010-09-07
6725500 Air recirculating surface cleaning device Mark W. Allen 2004-04-27
5956863 Hair dryer apparatus and method 1999-09-28
5511841 Golf ball retriever device and method of using same 1996-04-30
4991314 Fluid flow apparatus and process 1991-02-12
4928402 Fluid flow apparatus and process 1990-05-29
4836702 Cleaning device for paint brushes and rollers 1989-06-06
4815230 Cricket dispenser 1989-03-28
4248013 Hydroponic bedding tray apparatus 1981-02-03