Average Co-Inventor Count = 2.50
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. Itt Industries, Inc. (4 from 767 patents)
2. Leifheit (1 from 1 patent)
5 patents:
1. 4901871 - Drying rack
2. 4502173 - Floor-sweeping machine
3. 4484371 - Floor-sweeping machine
4. 4484372 - Floor-sweeping machine
5. D274663 - Carpet sweeper with additional rotable edge brushes