Robert A. Luhman has been granted 16 US patents while listed as an inventor at 3M . The first was granted in 1988 and the most recent in July 1998. Robert A. Luhman ranks #284,196 of 4,157,543 US inventors in our database (top 6.8%). Patent records list Robert A. Luhman in New Richmond, WI, US.
Patents per Year Patents granted per year, 1988 to 1998 Bar chart with a peak of 4 patents in 1994. peak 4 1988: 1 patents 1988 1989: 1 patents 1989 1990: 1 patents 1990 1992: 2 patents 1992 1994: 4 patents 1994 1995: 1 patents 1995 1996: 3 patents 1996 1997: 1 patents 1997 1998: 2 patents 1998
Issued Patents All Time
Profile Widget
Showing 1–16 of 16 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
D396061 Adhesive tape transfer applicator Craig D. Thompson 1998-07-14
5759342 Hand-held tape dispenser James D. Ramacier , Craig D. Thompson 1998-06-02
$14,491,000
5641378 Hand applicator for adhesive sheeting Craig D. Thompson 1997-06-24
$14,949,000
5573626 Tape supply and applicator system including a tape splicing mechanism Steven J. Rossini , Keith T. Pinckney , Karl M. Kropp 1996-11-12
$12,111,000
5536044 Hot melt adhesive bound book Gary K. Kuhn , Kenneth J. Perrington , Karl M. Kropp , Michael W. Gruber 1996-07-16
$11,996,000
5482182 Tape dispenser Craig D. Thompson 1996-01-09
$8,785,000
D357502 Hand held tape applicator Edward J. Schwarz , Craig D. Thompson 1995-04-18
5352320 Manual tape dispensing apparatus Mark E. Schwartz , James D. Ramacier , Raymond D. Zachrison 1994-10-04
$5,431,000
5346350 Hot melt adhesive applicator Gary K. Kuhn , Kenneth J. Perrington , Karl M. Kropp , Michael W. Gruber 1994-09-13
$6,184,000
5316424 Hot melt adhesive binding method Gary K. Kuhn , Kenneth J. Perrington , Karl M. Kropp , Michael W. Gruber 1994-05-31
$8,026,000
5312501 Automated liner removing transfer tape applicator method Michael W. Gruber 1994-05-17
$18,701,000
5152654 Hot melt adhesive applicator Gary K. Kuhn , Kenneth J. Perrington , Karl M. Kropp , Michael W. Gruber 1992-10-06
$4,990,000
D326474 Combined hand-held tape dispenser and applicator Richard Patten 1992-05-26
4980011 Automated liner removing transfer tape applicator Michael W. Gruber 1990-12-25
4848066 Method and apparatus for assembling blister packages — 1989-07-18
$3,431,000
4781782 Web applicator Kent S. Tarbutton , Rudolf I. Shvartsman , Donald J. Geisel , Richard J. Pilarski 1988-11-01
$6,204,000
