Average Co-Inventor Count = 2.81
ph-index = 3
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. 3m Innovative Properties Company (4 from 14,076 patents)
4 patents:
1. D719710 - Sponge
2. D641527 - Cleaning sponge
3. D627530 - Cleaning tool
4. D627531 - Handheld cleaning tool