Average Co-Inventor Count = 3.46
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. Other (3 from 832,680 patents)
3 patents:
1. 11116295 - Easy-to-drawing-in umbrella
2. 10743626 - Umbrella drawing-in by winding
3. 8011642 - Cruising aerator