Average Co-Inventor Count = 1.79
ph-index = 8
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 Corporation of North America (8 from 105 patents)
2. Matsushita Electric Corporation of America (6 from 139 patents)
14 patents:
1. 8533903 - Dirt cup assembly with a pre-filter having a plurality of ribs
2. 7921510 - Motor enclosure for a vacuum cleaner
3. 7614113 - Motor enclosure for a vacuum cleaner
4. 7318250 - Bare floor shifter for vacuum cleaner
5. 7165286 - Agitator construction
6. 7120964 - Bare floor shifter for vacuum cleaner
7. 7007336 - Agitator construction
8. 6915544 - Agitator drive system with bare floor shifter
9. 6859970 - Agitator for vacuum cleaner/extractor
10. 6832408 - Caddy for vacuum cleaner tool and accessories
11. 6807708 - Upright vacuum cleaner with dual hoses and hose ports
12. 6766559 - Telescoping handle for upright vacuum cleaner
13. 6169258 - Three position control switch assembly
14. 6067689 - Shifter mechanism for vacuum cleaner