Average Co-Inventor Count = 2.86
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. D.light Design, Inc. (4 from 28 patents)
4 patents:
1. 8395389 - Lamp with metering device
2. D640401 - Portable solar powered light
3. 7898261 - Lamp with metering device
4. D567417 - Casing for a portable solar powered light