Bert E. Bergstrom — 2 Patents | Patent Leaderboard

Bert E. Bergstrom has been granted 2 US patents. The first was granted in 1980 and the most recent in May 1989. Bert E. Bergstrom ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Bert E. Bergstrom in Sandviken, SE.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
4831674	Drilling and threading tool and method for drilling and threading	Hans Lindberg	1989-05-23	$337,000
4212569	Tubular drill tool	Allan Bo Andersson	1980-07-15

Bert E. Bergstrom — 2 Patents

Issued Patents All Time

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