Average Co-Inventor Count = 1.69
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. Panasonic Corporation of North America (7 from 105 patents)
2. Matsushita Electric Corporation of America (2 from 139 patents)
9 patents:
1. 9155433 - Floor cleaning apparatus with filter drawer
2. 8887352 - Canister vacuum cleaner incorporating a control handle and nozzle assembly with upright swivel lock
3. 8533903 - Dirt cup assembly with a pre-filter having a plurality of ribs
4. 7636983 - Floor care apparatus with telescoping handle stalk
5. 7219389 - Nozzle assembly housing for vacuum cleaner
6. 7165286 - Agitator construction
7. 7007336 - Agitator construction
8. 6859970 - Agitator for vacuum cleaner/extractor
9. 6832408 - Caddy for vacuum cleaner tool and accessories