Average Co-Inventor Count = 2.50
ph-index = 7
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. Earthway Products, Inc. (21 from 27 patents)
2. Chapman, Richard H. (0 patent)
3. Sevrey, Richard (0 patent)
4. Kendall, Jeffrey (0 patent)
22 patents:
1. 12302779 - Adaptable walk behind spreader
2. 12245539 - Particulate material dispersing apparatus with shut-off adjustment plate
3. 12120974 - Spread control mechanism
4. 11744170 - Handheld spreader with removable sifter
5. 11690311 - Systems and methods for spreading particulate material
6. 11553641 - Dual-impeller spreader with dual shut-off controls
7. D924644 - Handheld spreader
8. 10993368 - Spread control mechanism
9. D915847 - Handheld spreader
10. 10225976 - Adaptable spreader
11. 9820430 - Spread control mechanism
12. D792911 - Impeller
13. D758454 - Spreader hopper
14. 9198345 - Adaptable spreader
15. 9192094 - Adaptable spreader