Average Co-Inventor Count = 2.47
ph-index = 1
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. Tennant Company (4 from 265 patents)
4 patents:
1. 10765286 - Surface maintenance machine
2. 10610077 - Surface maintenance machine with a quick eject cleaning tool assembly
3. 10456003 - Surface maintenance machine
4. 10405723 - Surface maintenance machine