Average Co-Inventor Count = 2.90
ph-index = 6
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. Royal Appliance Mfg., Co. (3 from 234 patents)
2. Other (1 from 832,718 patents)
3. Health O Meter, Inc. (1 from 17 patents)
6 patents:
1. 8695638 - Valve
2. 7052523 - Bagless canister vacuum cleaner
3. 6712868 - Bagless canister vacuum cleaner
4. D447379 - Mixing appliance
5. D444603 - Tool holder for vacuum cleaner wand
6. 5687637 - Automatic tea brewing device