Average Co-Inventor Count = 1.67
ph-index = 9
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 Corporation of America (12 from 139 patents)
2. Matsushita Electric Industrial Co., Ltd. (7 from 27,375 patents)
3. Panasonic Corporation of North America (2 from 105 patents)
4. Panasonic Corporation (1 from 16,453 patents)
21 patents:
1. D607162 - Bagless upright vacuum cleaner
2. D597713 - Vacuum cleaner
3. D573759 - Electric vacuum cleaner
4. D570563 - Vacuum cleaner
5. D570567 - Vacuum cleaner
6. D570569 - Vacuum cleaner nozzle
7. D566915 - Nozzle for electric vacuum cleaner
8. D564159 - Nozzle for electric vacuum cleaner
9. D530472 - Electric vacuum cleaner
10. D498029 - Upright vacuum cleaner nozzle with pivoting agitator
11. D495455 - Vacuum cleaner canister body
12. D495106 - Dual agitator nozzle for vacuum cleaner
13. D488272 - Vacuum cleaner canister assembly
14. D487323 - Upright bagless vacuum cleaner
15. D485029 - Canister assembly for upright vacuum cleaner