William E. Sandford — 9 Patents at Tri Tool

William E. Sandford has been granted 9 US patents while listed as an inventor at Tri Tool. The first was granted in 1987 and the most recent in March 2000. William E. Sandford ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list William E. Sandford in Camino, CA, US.

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #	Title	Co-Inventors	Date
6042309	Tool bit with undercut hook radius	—	2000-03-28
5868531	Tool bit with undercut hook radius	—	1999-02-09
5671646	Tube end squaring tool	Henry Astle	1997-09-30
D383960	Tube end squaring tool	Henry Astle	1997-09-23
5515756	Roller cutter module with force equalizer	Henry Astle	1996-05-14
4981055	Portable facing tool	Jerald VanderPol	1991-01-01
D303487	Portable pipe end preparation tool with right angle feed control	Terry B. Linton	1989-09-19
4784028	Mandrel assembly for a portable lathe	—	1988-11-15
4646413	Tube extractor drill jig	Lawson H. Nall	1987-03-03

William E. Sandford — 9 Patents

Issued Patents All Time

Patent Widget