Average Co-Inventor Count = 2.73
ph-index = 7
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 (1 from 139 patents)
3. Fanasonic Corporation of North America (1 from 1 patent)
9 patents:
1. 8769764 - Hand-held and conversion vacuum cleaner with adapter
2. 8661613 - Steerable upright vacuum cleaner
3. 7832050 - Floor care apparatus with a three section wand assembly
4. 7752708 - Floor cleaning apparatus with filter cleaning system
5. 7640624 - Dirt cup with dump door in bottom wall and dump door actuator on top wall
6. 7468083 - Vacuum cleaner equipped with bag mount and separate bag caddy
7. 7281295 - Canister vacuum cleaner with stair hugging swivel wheel assembly
8. 7194784 - Floor cleaning apparatus with pivotal handle
9. 6766559 - Telescoping handle for upright vacuum cleaner