Helen Yan

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Tianjin, CN

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Patents Grantslast 30 patents

Information Patent Grant
Building control device with a light guide configured for uniformly...
- Patent number 12,345,936
- Issue date Jul 1, 2025
- Honeywell International Inc.
- Chao Chen
- G02 - OPTICS
Information Patent Grant
Building control device with a light guide configured for uniformly...
- Patent number 12,282,187
- Issue date Apr 22, 2025
- Honeywell International Inc.
- Chao Chen
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
BUILDING CONTROL DEVICE WITH A LIGHT GUIDE CONFIGURED FOR UNIFORMLY...
- Publication number 20240264360
- Publication date Aug 8, 2024
- Honeywell International Inc.
- Chao Chen
- G02 - OPTICS
Information Patent Application
BUILDING CONTROL DEVICE WITH A LIGHT GUIDE CONFIGURED FOR UNIFORMLY...
- Publication number 20240264394
- Publication date Aug 8, 2024
- Honeywell International Inc.
- Chao Chen
- G02 - OPTICS