Charles E. Konrad has been granted 23 US patents while listed as an inventor at GE . The first was granted in 1980 and the most recent in July 2001. Charles E. Konrad ranks #178,160 of 4,157,543 US inventors in our database (top 4.3%). Patent records list Charles E. Konrad in Roanoke, VA, US.
Patents per Year Patents granted per year, 1980 to 2001 Bar chart with a peak of 5 patents in 1984. peak 5 1980: 1 patents 1980 1982: 1 patents 1983: 2 patents 1983 1984: 5 patents 1985: 2 patents 1985 1986: 1 patents 1988: 1 patents 1988 1989: 1 patents 1993: 1 patents 1993 1994: 3 patents 1995: 1 patents 1995 1996: 1 patents 1999: 2 patents 1999 2001: 1 patents 2001
Issued Patents All Time
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Showing 1–23 of 23 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
6254353 Method and apparatus for controlling operation of a submersible pump Massimo Polo , Stefano Cavagna , Robert M. Gamber 2001-07-03
$104,792,000
5945802 Ground fault detection and protection method for a variable speed ac electric motor Robert M. Gamber , Massimo Polo 1999-08-31
$232,287,000
5883489 High speed deep well pump for residential use — 1999-03-16
$119,523,000
5486748 Method and apparatus for improved efficiency in a pulse-width-modulated alternating current motor drive Richard W. Boothe 1996-01-23
$33,820,000
5403244 Electric vehicle drive train with direct coupling transmission Jerome Benedict Tankersley , Richard W. Boothe 1995-04-04
$34,274,000
5376869 Electric vehicle drive train with rollback detection and compensation — 1994-12-27
$15,862,000
5369540 Electric vehicle drive train with contactor protection Ralph A. Benson 1994-11-29
$22,965,000
5287051 Method and apparatus for improved efficiency in a pulse-width-modulated alternating current motor drive Richard W. Boothe 1994-02-15
$10,754,000
5227703 Protection system for alternating current, battery powered electric traction motor vehicle Richard W. Boothe 1993-07-13
$13,072,000
4870564 Distributed input/output system William J. Ketelhut 1989-09-26
$7,187,000
4764868 Distributed input/output system William J. Ketelhut 1988-08-16
$10,295,000
4593380 Dual function input/output for a programmable controller Mark Kocher , Ronald E. Gareis , William J. Ketelhut 1986-06-03
$8,735,000
4520299 Turning speed controller for electric vehicles having dual drive motors — 1985-05-28
$7,326,000
4500818 Dual motor proportioning control Ronald E. Gareis , Amratlal C. Lodhia 1985-02-19
$4,667,000
4468599 Plug current regulator Max Berman , William G. Klimmek 1984-08-28
$4,719,000
4454503 Transistor fault indicator — 1984-06-12
$4,789,000
4449080 Electric vehicle protection scheme Robert C. Clark 1984-05-15
$3,892,000
4443744 Method and apparatus for charge enhancement of a commutating capacitor — 1984-04-17
$6,210,000
4427930 Electric vehicle current regulator Max Berman , William G. Klimmek 1984-01-24
$5,076,000
4423362 Electric vehicle current regulating system Robert C. Clark 1983-12-27
$7,111,000
4375603 Shunt-wound control for on-road vehicle — 1983-03-01
$9,530,000
4320334 Battery state-of-charge indicator Richard K. Davis 1982-03-16
$3,106,000
4234840 Battery state-of-charge indicator Richard K. Davis 1980-11-18
$2,330,000
