Average Co-Inventor Count = 3.33
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. Karma Medical Products Co., Ltd. (2 from 15 patents)
2. E Ink Holdings Inc. (1 from 551 patents)
3 patents:
1. D887311 - Mobility vehicle
2. D887313 - Mobility vehicle
3. 8576556 - Electronic book device integrated with a magnetic pen rack