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USPTO Patent Rankings Data through Dec 31, 2025
KH

Kevin Hoffman — 12 Patents

EDEnergy Conversion Devices: 7 patents #28 of 231Top 15%
USUnited Solar Systems: 4 patents #7 of 25Top 30%
SSSovonics Solar Systems: 1 patents #13 of 19Top 70%
Sterling Heights, MI: #90 of 1,485 inventorsTop 7%
Michigan: #7,722 of 86,293 inventorsTop 9%
Overall (All Time): #396,045 of 4,157,543Top 10%
12 Patents All Time
Kevin Hoffman has been granted 12 US patents while listed as an inventor at Energy Conversion Devices. The first was granted in 1984 and the most recent in October 1996. Kevin Hoffman ranks #396,045 of 4,157,543 US inventors in our database (top 9.5%). Patent records list Kevin Hoffman in Sterling Heights, MI, US.

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5569332 Optically enhanced photovoltaic back reflector Troy Glatfelter, Chi C. Yang, Subhendu Guha 1996-10-29
5437735 Photovoltaic shingle system Kais Younan, David Wolf, Mark Lycette, Troy Glatfelter, Arindam Banerjee 1995-08-01
5180434 Interfacial plasma bars for photovoltaic deposition apparatus Gary M. DiDio, Kermit Jones, Timothy D. Laarman, Jon Call, Prem Nath 1993-01-19
5101260 Multilayer light scattering photovoltaic back reflector and method of making same Prem Nath, John D. Call, Timothy D. Laarman, Gary M. DiDio 1992-03-31 $1,085,000
5090356 Chemically active isolation passageway for deposition chambers Prem Nath, Jon Call, Gary M. DiDio 1992-02-25
4574733 Substrate shield for preventing the deposition of nonhomogeneous films Prem Nath 1986-03-11 $1,085,000
4537795 Method for introducing sweep gases into a glow discharge deposition apparatus Prem Nath, Timothy D. Laarman 1985-08-27
4520757 Process gas introduction, confinement and evacuation system for glow discharge deposition apparatus Prem Nath, Timothy D. Laarman 1985-06-04 $781,000
4479455 Process gas introduction and channeling system to produce a profiled semiconductor layer Joachim Doehler, Timothy D. Laarman, Gary M. DiDio, Therese McDonough 1984-10-30 $1,171,000
4462333 Process gas introduction, confinement and evacuation system for glow discharge deposition apparatus Prem Nath, Timothy D. Laarman 1984-07-31 $445,000
4450786 Grooved gas gate Joachim Doehler, David A. Gattuso 1984-05-29 $660,000
4438724 Grooved gas gate Joachim Doehler, David A. Gattuso 1984-03-27 $771,000