William F. Graebe, Jr.

📍 Collinsville, IL: #18 of 115 inventorsTop 20%

🗺 Illinois: #17,877 of 84,256 inventorsTop 25%

Overall (All Time): #1,028,354 of 4,157,543Top 25%

Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #	Title	Co-Inventors	Date
7583199	Air cushion control system	—	2009-09-01
5473313	Wheelchair seat cushion	—	1995-12-05
5176392	Shopping cart accessory	—	1993-01-05
5072957	Shopping cart accessory	—	1991-12-17
4833457	Immersion control device and associated alarm system	—	1989-05-23