Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Christopher James Chrin — 4 Patents

ATAT&T: 4 patents #4,409 of 18,772Top 25%
Lisle, IL: #156 of 567 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
Christopher James Chrin has been granted 4 US patents while listed as an inventor at AT&T. The first was granted in 1986 and the most recent in September 2003. Christopher James Chrin ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Christopher James Chrin in Lisle, IL, US.

Patents per Year

Patents granted per year, 1986 to 2003Bar chart with a peak of 2 patents in 2003.peak 21986: 1 patents19862000: 1 patents20002003: 2 patents2003

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6628652 Flexible telecommunications switching network Meyer J. Zola 2003-09-30 $17,603,000
6600741 Large combined broadband and narrowband switch Kevin Dombkowski, Meyer J. Zola 2003-07-29 $16,180,000
6049540 Enhanced telecommunications switching unit Meyer J. Zola 2000-04-11 $67,246,000
4577287 Method and apparatus for generating digital signals representing periodic samples of a sine wave 1986-03-18