Khem Garewal has been granted 10 US patents while listed as an inventor at Zenith Electronics . The first was granted in 1984 and the most recent in October 2005. Khem Garewal ranks #481,000 of 4,157,543 US inventors in our database (top 11.6%). Patent records list Khem Garewal in Hoffman Estates, IL, US.
Patents per Year Patents granted per year, 1984 to 2005 Bar chart with a peak of 2 patents in 2005. peak 2 1984: 1 patents 1984 1985: 1 patents 1985 1987: 1 patents 1987 1988: 1 patents 1988 1989: 1 patents 1989 1998: 1 patents 1998 2001: 1 patents 2001 2003: 1 patents 2003 2005: 2 patents 2005
Issued Patents All Time
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Showing 1–10 of 10 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
6952466
Oil-free electron source for an EBT scanner
Roy E. Rand , Thomas Clarke Sanders
2005-10-04
$54,488,000
6891321
Oil-free electron source having cathode and anode members adjustable with five degrees of freedom
Thomas Clarke Sanders , Roy E. Rand
2005-05-10
$31,661,000
6670625
Method and apparatus for correcting multipole aberrations of an electron beam in an EBT scanner
Roy E. Rand
2003-12-30
$42,246,000
6208711
Method and apparatus for clearing ions in a scanning electron beam computed tomographic system using a single potential power source
Roy E. Rand , James F. Heilman
2001-03-27
$3,682,000
5719914
Method for correcting spherical aberration of the electron beam in a scanning electron beam computed tomography system
Roy E. Rand , Glenn R. James
1998-02-17
$7,124,000
4795391
Means and method of forming aligned apertures in electron guns
Allen P. Blacker
1989-01-03
$5,376,000
4771216
Electron gun system providing for control of convergence, astigmatism and focus with a single dynamic signal
Allen P. Blacker
1988-09-13
$4,085,000
4704565
Dynamically converging electron gun system
Allen P. Blacker , John A. Christensen
1987-11-03
$1,492,000
4529910
High-performance electron gun
Arthur J. Ingle
1985-07-16
$1,712,000
4469987
Means for enhancing brightness of a monochrome CRT without loss of resolution
Allen P. Blacker
1984-09-04
$4,292,000