Average Co-Inventor Count = 4.44
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. (9 from 27,375 patents)
2. Kyushu Matsushita Electric Co., Ltd. (2 from 2 patents)
11 patents:
1. D303173 - Vacuum cleaner
2. D291449 - Typewriter
3. D291324 - Typewriter
4. D290894 - Vacuum cleaner
5. D290714 - Combined typewriter and graphmaker
6. D290713 - Typewriter
7. D290361 - Printer
8. D289764 - Printer
9. D280033 - Vacuum cleaner
10. D278444 - Typewriter
11. D278247 - Typewriter