BW

Brian M. Watwood

UN Unknown: 2 patents #12,644 of 83,584Top 20%
Overall (All Time): #845,466 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
9724253 Foot operated mechanical steering system for a manual wheelchair Christopher Andrew Zikry, Marcel T. Bernucci, Dat Ho, Phuong V. Dang, Steven A. Lucero 2017-08-08
7261309 Wheelchair drive mechanism Duane DeJong, Errol C. Armstrong 2007-08-28
6893035 Wheelchair drive mechanism Duane DeJong, Errol C. Armstrong 2005-05-17
6755430 Wheelchair drive assembly Errol C. Armstrong, Dayn E. Beals, Duane DeJong 2004-06-29
6007082 Wheelchair driver and braking system Errol C. Armstrong 1999-12-28
5263729 Wheelchair driver and braking system Errol C. Armstrong 1993-11-23