Average Co-Inventor Count = 1.33
ph-index = 4
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. (4 from 27,375 patents)
4 patents:
1. D419973 - Image reader
2. D415127 - Image reader
3. D363924 - Combined scanner with printer
4. D302689 - Cordless telephone set