Gary Erpenbeck — 9 Patents at Tycom

Gary Erpenbeck has been granted 9 US patents while listed as an inventor at Tycom. The first was granted in 1991 and the most recent in January 2009. Gary Erpenbeck ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Gary Erpenbeck in Brooks Road, CA, US.

Patents per Year

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
7479056	Automated drill bit re-sharpening and verification system	Paul D Mortell, Chi Hoang, David M. McElrone, Walter James Frandsen, Jr., Charles S. Slemon	2009-01-20
7338344	Automated drill bit re-sharpening and verification system	Paul D Mortell, Chi Hoang, David M. McElrone, Walter James Frandsen, Jr., Charles S. Slemon	2008-03-04
7070483	Automated drill bit re-sharpening and verification system	Paul D Mortell, Chi Hoang, David M. McElrone, Walter James Frandsen, Jr., Charles S. Slemon	2006-07-04
6517411	Automated drill bit re-sharpening and verification system	Paul D Mortell, Chi Hoang, David M. McElrone, Walter James Frandsen, Jr., Charles S. Slemon	2003-02-11
6283824	Automated drill bit re-sharpening and verification system	Paul D Mortell, Chi Hoang, David M. McElrone, Walter James Frandsen, Jr., Charles S. Slemon	2001-09-04	$97,338,000
6030157	Composite drill bit using adhesive bond	—	2000-02-29
6030276	Automated drill bit re-shapening and verification system	Paul D Mortell, Chi Hoang, David M. McElrone, Walter James Frandsen, Jr., Charles S. Slemon	2000-02-29
5927912	Composite drill bit using adhesive bond	Benjamin Mihai	1999-07-27
5056610	Shale diverting means for a sealed bearing drill bit	Michael S. Oliver, Chris E. Cawthorne	1991-10-15	$1,470,000

Gary Erpenbeck — 9 Patents

Patents per Year

Issued Patents All Time

Patent Widget