Average Co-Inventor Count = 1.67
ph-index = 5
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. Pro-tech Manufacturing and Distribution, Inc. (2 from 13 patents)
2. Pro-tech Welding and Fabrication, Inc. (2 from 3 patents)
3. Other (1 from 832,891 patents)
5 patents:
1. 8621769 - Snow pusher for ice and snow removal
2. 8191288 - Reversible snow pusher and coupler
3. 6425196 - Folding pusher
4. 6112438 - Snow plow
5. 5724755 - Snow pusher