Donald L. Heimbigner

📍 Vancouver, WA: #761 of 1,812 inventorsTop 45%

🗺 Washington: #35,300 of 76,902 inventorsTop 50%

Overall (All Time): #2,364,437 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4416452	Bowling ball finger grip insert	—	1983-11-22
4289312	Finger grip insert for a bowling ball	—	1981-09-15