Average Co-Inventor Count = 2.97
ph-index = 5
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Industrial Technology Research Institute (13 from 9,138 patents)
2. Epistar Corporation (6 from 1,221 patents)
3. Other (5 from 832,680 patents)
4. Paitrix Co. Ltd. (1 from 1 patent)
5. Chao-chin Chang (1 from 1 patent)
23 patents:
1. 9985074 - Light-emitting device
2. 9578709 - Multi-function lighting system
3. 9490234 - Alternative current light-emitting systems
4. 9438063 - Charge apparatus
5. 9231168 - Light emitting diode package structure
6. 9093292 - Light-emitting systems
7. 9070573 - Light-emitting systems
8. 8922804 - Technical documents capturing and patents analysis system and method
9. 8847508 - Multi-function lighting system
10. 8704241 - Light-emitting systems
11. 8690740 - Adjustable weight training device
12. 8692505 - Charge apparatus
13. 8632199 - Lamp apparatuses
14. 8599449 - Technical documents capturing and patents analysis system and method
15. 8373880 - Technical documents capturing and patents analysis system and method