DW

Douglas G. Willis

📍 Fresno, CA: #50 of 831 inventorsTop 7%
🗺 California: #60,666 of 386,348 inventorsTop 20%
Overall (All Time): #495,603 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
11702123 Braking and steering control apparatus for securing and moving an object on a surface 2023-07-18
11679824 Fluid-filled track wheel for improved movement of an object across a non-planar area 2023-06-20
10137731 Wheel pad 2018-11-27
9950564 Articulating carriage 2018-04-24
9844980 Mobility device having walking wheel assembly for moving an object across non-planar areas 2017-12-19
9744807 Wheel float with improved pivot joints 2017-08-29
7506405 Quad-caster carriage with forklift attachment 2009-03-24
7500285 Articulated caster 2009-03-10
7146683 Articulated caster 2006-12-12
5507069 Articulated caster 1996-04-16