Average Co-Inventor Count = 4.21
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. Matsushita Electric Industrial Co., Ltd. (2 from 27,375 patents)
2. Panasonic Corporation (1 from 16,453 patents)
3. Panasonic Intellectual Property Management Co., Ltd. (1 from 13,247 patents)
4 patents:
1. 12479648 - Heat retaining container
2. 8800312 - Refrigerator
3. 7318323 - Ice-making device
4. 7152424 - Ice tray and ice making machine, refrigerator both using the ice tray