Charles E. Alexson has been granted 11 US patents while listed as an inventor at 3M . The first was granted in 1988 and the most recent in July 2009. Charles E. Alexson ranks #435,149 of 4,157,543 US inventors in our database (top 10.5%). Patent records list Charles E. Alexson in New Richmond, WI, US.
Patents per Year Patents granted per year, 1988 to 2009 Bar chart with a peak of 3 patents in 1989. peak 3 1988: 1 patents 1988 1989: 3 patents 1989 1993: 1 patents 1993 1995: 1 patents 1995 1996: 1 patents 1996 1997: 1 patents 1997 1998: 1 patents 1998 2009: 2 patents 2009
Issued Patents All Time
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Showing 1–11 of 11 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
RE40848 Combination rechargeable, detachable battery system and power tool James F. Pitzen , Jeffrey D. Smith 2009-07-14
RE40681 Combination rechargeable, detachable battery system and power tool James F. Pitzen , Jeffrey D. Smith 2009-03-24
5792573 Rechargeable battery adapted to be attached to orthopedic device James F. Pitzen , Jeffrey D. Smith 1998-08-11
D379795 Battery housing for an orthopedic surgical device James F. Pitzen , Jeffrey D. Smith , Lawrence J. Fenske 1997-06-10
5553675 Orthopedic surgical device James F. Pitzen , Jeffrey D. Smith 1996-09-10
$15,719,000
D364463 Orthopedic surgical instrument James F. Pitzen , Jeffrey D. Smith , Lawrence J. Fenske 1995-11-21
5273802 Orthopedic casting materials having superior lamination characteristics due to napped surface Matthew T. Scholz , Ralph A. Wilkens , Robert L. Assell 1993-12-28
$12,104,000
4872452 Bone rasp — 1989-10-10
$3,351,000
4834092 Device for driving tools used in orthopedic surgery Heinz H. Guenther 1989-05-30
$4,710,000
4806730 Method of forming crisp white indicia in aluminum Heinz H. Guenther 1989-02-21
$10,977,000
4736742 Device for driving tools used in orthopedic surgery Heinz H. Guenther 1988-04-12
$8,789,000
