Average Co-Inventor Count = 1.00
ph-index = 2
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. Production Resource Group Inc. (5 from 197 patents)
2. Light and Sound Design Ltd. (1 from 64 patents)
6 patents:
1. 7287880 - Bulb cooling
2. 7175317 - Bulb cooling
3. 7119902 - Calibration for optical filter
4. 7092098 - Calibration for optical filter
5. 6937338 - Calibration for optical filter
6. 6578991 - Bulb cooling