Average Co-Inventor Count = 4.45
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. Panasonic Electric Works Co., Ltd. (2 from 394 patents)
2. Matsushita Electric Industrial Co., Ltd. (1 from 27,375 patents)
3 patents:
1. D616903 - Pump
2. D604329 - Pump
3. 6146514 - Apparatus and method for measuring acidity