Average Co-Inventor Count = 3.33
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. Sanyo Electric Co., Ltd. (5 from 8,782 patents)
5 patents:
1. D644002 - Heating element for neck warmer
2. D639017 - Neck warmer with removable belt
3. D633052 - Controller for an electric blanket
4. D630879 - Electric lap robe
5. D628425 - Electric blanket