Robert R. Haza

UN Unknown: 2 patents #12,644 of 83,584Top 20%

📍 Westchester, IL: #43 of 124 inventorsTop 35%

🗺 Illinois: #34,584 of 84,256 inventorsTop 45%

Overall (All Time): #2,339,134 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4778178	Adjustable grip for bowling ball	—	1988-10-18
4561654	Device for adjusting the diameter of bowling ball holes	—	1985-12-31