Robert N. Behrens has been granted 17 US patents while listed as an inventor at John Deere . The first was granted in 1981 and the most recent in November 1997. Robert N. Behrens ranks #263,971 of 4,157,543 US inventors in our database (top 6.3%). Patent records list Robert N. Behrens in Horicon, WI, US.
Patents per Year Patents granted per year, 1981 to 1997 Bar chart with a peak of 3 patents in 1989. peak 3 1981: 1 patents 1981 1986: 2 patents 1987: 2 patents 1987 1988: 1 patents 1989: 3 patents 1989 1990: 2 patents 1991: 1 patents 1991 1992: 1 patents 1994: 2 patents 1994 1996: 1 patents 1997: 1 patents 1997
Issued Patents All Time
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Showing 1–17 of 17 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
5682753 Nitrogen gas water chiller apparatus — 1997-11-04
5540292 Pneumatically actuated horizontal drilling apparatus having a plurality of drills — 1996-07-30
5337849 Axle mounting mechanism Jimmy N. Eavenson, Sr. , Henry Friesen , Nicholas Hamm 1994-08-16
$12,159,000
5315893 Vehicle brake mechanism Jimmy N. Eavenson, Sr. 1994-05-31
$9,369,000
5125460 Pneumatically actuated horizontal drilling apparatus having a plurality of drills — 1992-06-30
4982762 Hydraulic lift with weight transfer Michael Chun-chieh Lee , Dale R. Dobberpuhl , Lloyd A. Wykhuis , Dix S. Montogomery 1991-01-08
$11,695,000
4969533 Work vehicle David R. Holm , Stephen G. Ritter , Kenneth Edward Hunt , Ronald J. Baker , Mark F. Hopp +2 more 1990-11-13
$3,125,000
4920732 Hydraulic lift with weight transfer Michael Chun-chieh Lee , Dale R. Dobberpuhl , Lloyd A. Wykhuis , Dix S. Montgomery 1990-05-01
$23,913,000
4883137 System and method for controlling the ground speed and enhancing the maneuverability of an off-road vehicle Lee J. Wanie , Stanley J. DeBraal , Michael Bedis 1989-11-28
$19,984,000
4852672 Drill apparatus having a primary drill and a pilot drill — 1989-08-01
4838299 Pulsation dampener apparatus — 1989-06-13
4759417 System and method for controlling the ground speed and enhancing the maneuverability of an off-road vehicle Lee J. Wanie , Stanley J. DeBraal 1988-07-26
$5,085,000
4715747 Air motivated conduit prover apparatus — 1987-12-29
4671395 Power take-off brake and clutch actuation assembly Dale R. Dobberpuhl 1987-06-09
$4,712,000
4589499 Horizontal drilling apparatus — 1986-05-20
4583390 Apparatus for squeezing off and rerounding pipe — 1986-04-22
4248331 Clutch-brake controls for a lawn and garden tractor — 1981-02-03
$15,423,000