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USPTO Patent Rankings Data through Dec 31, 2025
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David E. Doubek — 17 Patents

FPFocal Point: 6 patents #13 of 53Top 25%
DLDado Lighting: 5 patents #1 of 4Top 25%
CTCooper Technologies: 4 patents #241 of 859Top 30%
Indian Head Park, IL: #3 of 29 inventorsTop 15%
Illinois: #4,775 of 84,256 inventorsTop 6%
Overall (All Time): #263,971 of 4,157,543Top 7%
17 Patents All Time
David E. Doubek has been granted 17 US patents while listed as an inventor at Focal Point. The first was granted in 2000 and the most recent in September 2025. David E. Doubek ranks #263,971 of 4,157,543 US inventors in our database (top 6.3%). Patent records list David E. Doubek in Indian Head Park, IL, US.

Issued Patents All Time

Showing 1–17 of 17 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12404978 Lighting devices and methods for installing and repairing the same Noah Goldstein 2025-09-02
12313875 Undercabinet lighting devices and methods for installing the same Mladen Suleski 2025-05-27
12209728 Lighting devices for ceiling grids Erik Salinas 2025-01-28
11927797 Undercabinet lighting devices and methods for installing the same Mladen Suleski 2024-03-12
11808431 Lighting devices for ceiling grids Erik Salinas 2023-11-07
9388969 Lighting system for an architectural surface structure — 2016-07-12
9239149 Recessed luminaire Edwin Vice, Jr., Casey Chung 2016-01-19
8777459 Recessed luminaire Anthony G. Patti, Stephene H. Yuen, Peter F. Thornton, Jr. 2014-07-15
8408758 Recessed luminaire Anthony G. Patti, Stephen Yuen, Peter F. Thornton, Jr. 2013-04-02
8109659 Lighting fixture for an architectural surface structure — 2012-02-07
8100565 Recessed luminaire Anthony G. Patti, Stephen Yuen, Peter F. Thornton, Jr. 2012-01-24
8022641 Recessed LED down light Raymond George Janik, Stephen Yuen, Michael T. Thornton, Peter F. Thornton, Jr. 2011-09-20
7748868 Recessed luminaire Anthony G. Patti, Stephen Yuen, Peter F. Thornton, Jr. 2010-07-06
6652124 Lamp-independent adjustable recessed light fixture John S. Schubert, Joellen S. Lindhorst 2003-11-25
6505960 Recessed lighting fixture locking assembly John S. Schubert, Christopher T. Bobrowski 2003-01-14 $26,792,000
6431723 Recessed lighting fixture John S. Schubert, James Beresford Lee, Alice M. Jandrisits, Stephen Yuen 2002-08-13
6082878 Fully rotatable recessed light fixture with movable stop and adjustable length bar hanger Ken Czech, Louise Mamerow Gardner, David J. Ziobro, Rick Otto Meyer 2000-07-04

Nearby-Ranked Inventors

Michael John Caelwaerts17
Umut Zalluhoglu17
Austino Longo17
Till Bredbeck17
Mircea Grigore17
Achim Klein17
Manesh Nadupparambil Sekharan17
Yoshiaki Nishikawa17
Evan Sparks17