Average Co-Inventor Count = 5.60
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. Harison Toshiba Lighting Corporation (6 from 56 patents)
6 patents:
1. D598158 - Tubular lamp
2. D586939 - Tubular lamp
3. D586940 - Tubular lamp
4. D586941 - Tubular lamp
5. D586494 - Tubular lamp
6. D586495 - Tubular lamp