Mark Heyboer

📍 Grand Rapids, MI: #715 of 1,824 inventorsTop 40%

🗺 Michigan: #35,034 of 86,293 inventorsTop 45%

Overall (All Time): #1,891,907 of 4,157,543Top 50%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
11168963	Apparatus for removing spent primers from ammunition shell casings	—	2021-11-09
10712139	Apparatus for removing spent primers from ammunition shell casings	—	2020-07-14