Robert E. Krocker has been granted 9 US patents. The first was granted in 1981 and the most recent in June 2008. Robert E. Krocker ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Robert E. Krocker in Stoddard, WI, US.
Patents per Year Patents granted per year, 1981 to 2008 Bar chart with a peak of 2 patents in 1981. peak 2 1981: 2 patents 1981 1982: 2 patents 1982 1983: 1 patents 1983 1984: 1 patents 1984 1988: 1 patents 1988 1991: 1 patents 1991 2008: 1 patents 2008
Issued Patents All Time
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Showing 1–9 of 9 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
7383158 HVAC service tool with internet capability Terence D. Baier , Merle A. Renaud , Paul C. Rentmeester , Robert M. Swanson , Patrick J. Wilson +1 more 2008-06-03
$22,779,000
5027608 Method and apparatus for determining full load condition in a screw compressor Paul C. Rentmeester , Michael W. Murry , Thomas J. Clanin 1991-07-02
4751653 Fault detector for a three-phase alternating current supply Brian Scott Junk , Tony J. Wood 1988-06-14
$17,604,000
4446913 Auto changeover thermostat with means for handling temperature entry errors — 1984-05-08
4406133 Control and method for defrosting a heat pump outdoor heat exchanger James F. Saunders 1983-09-27
$1,617,000
4353409 Apparatus and method for controlling a variable air volume temperature conditioning system James F. Saunders 1982-10-12
$1,638,000
4338790 Control and method for defrosting a heat pump outdoor heat exchanger James F. Saunders 1982-07-13
$3,471,000
4307775 Current monitoring control for electrically powered devices James F. Saunders 1981-12-29
$2,511,000
4266599 Method and apparatus for controlling comfort conditions including setback James F. Saunders 1981-05-12
$1,987,000