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USPTO Patent Rankings Data through Dec 31, 2025
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Timothy E. Graff — 34 Patents

AGAppleton Grp: 27 patents #1 of 110Top 1%
DCDigital Appliance Controls: 3 patents #2 of 5Top 40%
EEEmerson Electric: 2 patents #471 of 1,374Top 35%
TITherm-O-Disc, Incorporated: 1 patents #71 of 131Top 55%
Motorola: 1 patents #7,754 of 14,142Top 55%
Arlington Heights, IL: #49 of 1,285 inventorsTop 4%
Illinois: #1,647 of 84,256 inventorsTop 2%
Overall (All Time): #100,737 of 4,157,543Top 3%
34 Patents All Time
Timothy E. Graff has been granted 34 US patents while listed as an inventor at Appleton Grp. The first was granted in 1987 and the most recent in September 2025. Timothy E. Graff ranks #100,737 of 4,157,543 US inventors in our database (top 2.4%). Patent records list Timothy E. Graff in Arlington Heights, IL, US.

Issued Patents All Time

Showing 1–25 of 34 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12422116 Hazardous area lighting with emergency power back up and wireless communications Ravindra Viraj Gurjar 2025-09-23
12295078 Luminaire for remote monitoring of power usage Ravindra Viraj Gurjar, Yicheng Peter Pan 2025-05-06
12156313 Controlling networked dimmable luminaires based on energy consumption Ravindra Viraj Gurjar, Jacob Zemba, Edward Brann 2024-11-26
11940122 LED luminaire having central driver housing Santosh K. Patil, Sumit Kumar, Karan C. Mandlekar, SB Chethan, Nagesh C. Nath +2 more 2024-03-26
11828440 IEC zone 1 rated LED light engine using pre-molded optic Jean-Francois Monteil, Marius Sav, Sumit Kumar 2023-11-28
11746993 IEC Zone 1 rated LED light engine using pre-molded encapsulation layer and metal sheet Sumit Kumar, Jean-Francois Monteil 2023-09-05
11672070 Providing industrial network reliability using luminaires Ravindra Viraj Gurjar 2023-06-06
11553571 Luminaire as an intrinsically safe power source Ravindra Viraj Gurjar, Yicheng Peter Pan 2023-01-10
11265989 Low voltage LED lighting fixture Pankaj P. Tikle, Ajay Tripathi 2022-03-01
11232684 Smart luminaire group control using intragroup communication Ravindra Viraj Gurjar, Yicheng Peter Pan 2022-01-25
11219112 Connected controls infrastructure Ravindra Viraj Gurjar, Yicheng Peter Pan 2022-01-04
D939126 Linear LED fixture Harish P. Kulkarni, James G. Brand, Santosh K. Patil, Sumit Kumar 2021-12-21
11181253 LED fixture housing with hinged side door Harish P. Kulkarni, Santosh K. Patil 2021-11-23
D934806 Linear LED series emergency battery backup luminaire Shriprasad V. Khadse, Santosh K. Patil, Sumit Kumar, Harish P. Kulkarni 2021-11-02
D935064 Explosion proof standard linear LED lighting fixture Ritu Raj, Anoop R. Zutti, Chetan Narkhede, Harish P. Kulkarni, Harsha N. Devappa +2 more 2021-11-02
D935065 Explosion proof emergency linear LED lighting fixture Anoop R. Zutti, Vinayak A. Jadhav, Santosh K. Patil, Harish P. Kulkarni, Harsha N. Devappa +1 more 2021-11-02
11112074 Mounting arrangement for a fixture having a mounting plate with wiring and driving compartment and holes for rope to be threaded therethrough Harish P. Kulkarni, Santosh K. Patil 2021-09-07
11076504 Arrangement for dissipating heat of a power supply unit in a housing Santosh K. Patil 2021-07-27
10704778 LED fixture Suraj N. Desai, Harsha N. Devappa, Dawn Grandsart, James G. Brand 2020-07-07
10591147 Connection mechanism Harsha N. Devappa, Vinaya N. Kubsad, Santosh K. Patil 2020-03-17
10480763 Enclosure for lighting systems Karan C. Mandlekar, Harsha N. Devappa, Sumit Kumar 2019-11-19
10473318 LED fixture with air gap and heat dissipation Harsha N. Devappa, Anoop R. Zutti, Dawn Grandsart, Chethan S B 2019-11-12
D866039 LED fixture James G. Brand, Saurabh Verma, Anoop R. Zutti 2019-11-05
10422172 Tool-less hinge mechanism Santosh K. Patil 2019-09-24
10274170 Drain system for a luminaire Santosh K. Patil, Vinaya N. Kubsad, Harish P. Kulkarni, Harsha N. Devappa, William Leber 2019-04-30

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