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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David A. LeFebre — 3 Patents

GUGuidedwave: 3 patents #1 of 3Top 35%
Rancho Cordova, CA: #146 of 502 inventorsTop 30%
California: #150,760 of 386,348 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
David A. LeFebre has been granted 3 US patents while listed as an inventor at Guidedwave. The first was granted in 1987 and the most recent in February 1993. David A. LeFebre ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list David A. LeFebre in Rancho Cordova, CA, US.

Patents per Year

Patents granted per year, 1987 to 1993Bar chart with a peak of 1 patents in 1987.peak 11987: 1 patents19871988: 1 patents19881993: 1 patents1993

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5184193 Dual fiber optic spectrophotometer 1993-02-02
4786171 Spectral analysis apparatus and method Roger E. Schirmer 1988-11-22
4664522 Optical waveguide spectrum analyzer and method 1987-05-12