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USPTO Patent Rankings Data through Dec 31, 2025
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Stan Bart — 4 Patents

ZEZenith Electronics: 2 patents #142 of 411Top 35%
ZRZenith Radio: 2 patents #44 of 184Top 25%
Hoffman Estates, IL: #205 of 707 inventorsTop 30%
Illinois: #21,640 of 84,256 inventorsTop 30%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Stan Bart has been granted 4 US patents while listed as an inventor at Zenith Electronics. The first was granted in 1982 and the most recent in February 1988. Stan Bart ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Stan Bart in Hoffman Estates, IL, US.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
4723165 AC coupled sync separator system with filter DC feedback 1988-02-02 $981,000
4621289 Digital sync separator and differentiator Gopal K. Srivastava 1986-11-04 $630,000
4322664 Vertical ramp generator for a television receiver George J. Tzakis 1982-03-30 $2,866,000
4318036 Pulse width modulator for a television receiver Gopal K. Srivastava 1982-03-02 $1,289,000