Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
JH

James J. Hagerty — 4 Patents

LTLightpath Technologies: 1 patents #20 of 38Top 55%
Saratoga, CA: #1,365 of 2,933 inventorsTop 50%
California: #126,026 of 386,348 inventorsTop 35%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
James J. Hagerty has been granted 4 US patents while listed as an inventor at Lightpath Technologies. The first was granted in 1989 and the most recent in April 1993. James J. Hagerty ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list James J. Hagerty in Saratoga, CA, US.

Patents per Year

Patents granted per year, 1989 to 1993Bar chart with a peak of 2 patents in 1990.peak 21989: 1 patents19891990: 2 patents19901993: 1 patents1993

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5200858 Uni-directional gradient index of refraction glasses David N. Pulsifer, Guy E. Rindone 1993-04-06
4929065 Glass plate fusion for macro-gradient refractive index materials David N. Pulsifer 1990-05-29
4907864 Macro-gradient optical density transmissive light concentrators, lenses and compound lenses of large geometry Leslie A. Danziger 1990-03-13
4883522 Fabrication of macro-gradient optical density transmissive light concentrators, lenses and compound lenses of large geometry Leslie A. Danziger 1989-11-28