Jerry E. Frease — 9 Patents at Jennmar

Jerry E. Frease has been granted 9 US patents while listed as an inventor at Jennmar. The first was granted in 1986 and the most recent in April 1996. Jerry E. Frease ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Jerry E. Frease in Marion, IL, US.

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Showing 1–9 of 9 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
5505562	Mechanical truss wrench	John C. Stankus	1996-04-09
5450663	Method for fabricating a truss member for a mine roof support	Frank Calandra, Jr., Lajos Kovacs, John C. Stankus, Eugene H. Stewart	1995-09-19
5302056	Method and apparatus for supporting a mine roof	Frank Calandra, Jr., Lajos Kovacs, John C. Stankus, Eugene H. Stewart	1994-04-12
5244314	Expansion assembly	Frank Calandra, Jr., John C. Stankus	1993-09-14
5082399	Mine roof anchor having adjustable resin retaining washer and expansion shell assembly with friction reducing means	John C. Stankus, Eugene H. Stewart, Glen S. Grissinger	1992-01-21
5076733	Mine roof anchor assembly having an expansion shell assembly with a friction reducing means	—	1991-12-31
5064312	Delay stopper for a mine roof anchor and method of manufacture thereof	Frank Calandra, Jr.	1991-11-12
4664561	Combined resin-mechanical mine roof bolt anchor	—	1987-05-12	$130,000
4596496	Mine roof supporting truss system	Gary D. Tyrell, Robert W. Hill	1986-06-24	$136,000

Jerry E. Frease — 9 Patents

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