JH

John W. Hoornstra

📍 Vassar, MI: #7 of 38 inventorsTop 20%
🗺 Michigan: #27,158 of 86,293 inventorsTop 35%
Overall (All Time): #1,652,059 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5449478 Contoured seating construction and method Dwight S. Gay 1995-09-12
5209509 Wheelchair footrest assembly Dwight S. Gay 1993-05-11
4893827 Chair construction for incapacitated persons Dwight S. Gay 1990-01-16