John R. Kreft

BR Brunswick: 1 patents #737 of 1,301Top 60%

📍 Tulsa, OK: #1,272 of 2,344 inventorsTop 55%

🗺 Oklahoma: #6,781 of 12,736 inventorsTop 55%

Overall (All Time): #4,009,316 of 4,157,543Top 100%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4496115	Ratchet spring	Elvis W. Moss	1985-01-29