Average Co-Inventor Count = 4.14
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 14,087 patents)
4 patents:
1. 7631391 - Head for a strip mop
2. D465890 - Mop head
3. D457994 - Base cover for flat mop heads
4. 6161242 - Mops