Hazardous area lighting with emergency power back up and wireless communications
US-12422116-B2 · Sep 23, 2025 · US
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Graff Timothy E patents
Graff Timothy E is listed as an inventor on 48 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Graff Timothy E |
| Total patents | 48 |
| First publication | Nov 7, 2017 |
| Latest publication | Sep 23, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Wirelesshart connectivity for circuit breakers in an explosion-proof housing for health/performance monitoring
US-2025264865-A1 · Aug 21, 2025 · US
Luminaire for remote monitoring of power usage
US-12295078-B2 · May 6, 2025 · US
Controlling networked dimmable luminaires based on energy consumption
US-12156313-B2 · Nov 26, 2024 · US
Hazardous Area Lighting with Emergency Power Back Up and Wireless Communications
US-2024191850-A1 · Jun 13, 2024 · US
LED luminaire having central driver housing
US-11940122-B2 · Mar 26, 2024 · US
IEC zone 1 rated LED light engine using pre-molded optic
US-11828440-B2 · Nov 28, 2023 · US
IEC Zone 1 rated LED light engine using pre-molded encapsulation layer and metal sheet
US-11746993-B1 · Sep 5, 2023 · US
Providing industrial network reliability using luminaires
US-2023276559-A1 · Aug 31, 2023 · US
Controlling networked dimmable luminaires based on energy consumption
US-2023199933-A1 · Jun 22, 2023 · US
Recent patents
Latest publications not already listed above.
Providing industrial network reliability using luminaires
US-11672070-B2 · Jun 6, 2023 · US
Luminaire for remote monitoring of power usage
US-2023156888-A1 · May 18, 2023 · US
Assembly for facilitating electrical connection between a circuit breaker and cables inside a panelboard
US-2023066713-A1 · Mar 2, 2023 · US
Luminaire as an intrinsically safe power source
US-11553571-B2 · Jan 10, 2023 · US
Industrial plant environmental condition map using luminaires
US-2022418073-A1 · Dec 29, 2022 · US
Industrial high ceiling led luminaire
US-2022349539-A1 · Nov 3, 2022 · US
Providing industrial network reliability using luminaires
US-2022330407-A1 · Oct 13, 2022 · US
IEC ZONE 1 Rated LED Light Engine using Pre-Molded Optic
US-2022307675-A1 · Sep 29, 2022 · US
Low voltage LED lighting fixture
US-11265989-B2 · Mar 1, 2022 · US
Smart luminaire group control using intragroup communication
US-11232684-B2 · Jan 25, 2022 · US
Connected controls infrastructure
US-11219112-B2 · Jan 4, 2022 · US
Linear LED fixture
US-D939126-S · Dec 21, 2021 · US
LED fixture housing with hinged side door
US-11181253-B2 · Nov 23, 2021 · US
Linear LED series emergency battery backup luminaire
US-D934806-S · Nov 2, 2021 · US
Explosion proof emergency linear LED lighting fixture
US-D935065-S · Nov 2, 2021 · US
Explosion proof standard linear LED lighting fixture
US-D935064-S · Nov 2, 2021 · US
Mounting arrangement for a fixture having a mounting plate with wiring and driving compartment and holes for rope to be threaded therethrough
US-11112074-B2 · Sep 7, 2021 · US
Luminaire as an intrinsically safe power source
US-2021235559-A1 · Jul 29, 2021 · US
Arrangement for dissipating heat of a power supply unit in a housing
US-11076504-B2 · Jul 27, 2021 · US
Connected controls infrastructure
US-2021076470-A1 · Mar 11, 2021 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Appleton Grp Llc | 48 |
| Appleton Grp LLP | 1 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| F21Y2115/10 | 19 |
| H05B47/19 | 16 |
| F21V29/508 | 8 |
| F21V23/008 | 8 |
| H05B47/165 | 7 |