Average Co-Inventor Count = 2.77
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. Duracell Inc. (2 from 219 patents)
2. Duracell International Inc. (1 from 35 patents)
3 patents:
1. 4585716 - Cell corrosion reduction
2. 4397924 - High temperature solid state storage cell
3. 4299890 - Solid state cell