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Gary D. Tyrell

TEThe Eastern: 1 patents #60 of 119Top 55%

Marietta, OH: #88 of 150 inventorsTop 60%

Ohio: #42,657 of 73,341 inventorsTop 60%

Overall (All Time): #3,997,611 of 4,157,543Top 100%

1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4596496	Mine roof supporting truss system	Robert W. Hill, Jerry E. Frease	1986-06-24