Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Leif Fredin — 8 Patents

SESystems & Processes Engineering: 3 patents #3 of 7Top 45%
FIFinisar: 2 patents #289 of 719Top 45%
STSi Diamond Technology: 2 patents #17 of 39Top 45%
UAUS Army: 1 patents #2,854 of 6,974Top 45%
Diemelstraße, TX: #190 of 1,115 inventorsTop 20%
Texas: #19,067 of 125,132 inventorsTop 20%
Overall (All Time): #600,572 of 4,157,543Top 15%
8 Patents All Time
Leif Fredin has been granted 8 US patents while listed as an inventor at Systems & Processes Engineering. The first was granted in 1995 and the most recent in June 2006. Leif Fredin ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Leif Fredin in Diemelstraße, TX, US.

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7057714 Method and system for measuring optical scattering characteristics Robert C. Chin, William H. Hallidy 2006-06-06
7024085 Systems and devices for dynamic processing of optical signals Terry Markwardt, Ray T. Chen, Ram Sivaraman 2006-04-04 $5,383,000
6778736 Dynamic variable optical attenuator and variable optical tap Terry Markwardt, Ray T. Chen, Ram Sivaraman 2004-08-17 $999,000
6606148 Method and system for measuring optical scattering characteristics Robert C. Chin, William H. Hallidy 2003-08-12
6524001 Method and system for sensing optical fiber temperature Brendan Krenek 2003-02-25
5906721 Composition and method for preparing phosphor films exhibiting decreased coulombic aging Christo Bojkov, Nalin Kumar, Howard K. Schmidt 1999-05-25
5853554 Composition and method for preparing phosphor films exhibiting decreased coulombic aging Christo Bojkov, Nalin Kumar, Howard K. Schmidt 1998-12-29
H1461 Abrasion resistant diamond like coating for optical fiber and method of Sam DiVita, John L. Margrave, Donald E. Patterson 1995-07-04