Average Co-Inventor Count = 4.00
ph-index = 3
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. Toshiba Lighting & Technology Corporation (4 from 662 patents)
2. Osram-melco Toshiba Lighting Ltd. (4 from 6 patents)
4 patents:
1. D520150 - Halogen bulb
2. D513641 - Halogen bulb
3. D512788 - Halogen bulb
4. D509310 - Halogen bulb