Average Co-Inventor Count = 4.22
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. The Singer Company (4 from 1,246 patents)
2. The Toro Company (1 from 825 patents)
5 patents:
1. D279295 - Hand operable fabric repairing machine
2. D278912 - Hand operable sewing machine
3. D278537 - Snow thrower
4. D277863 - Sewing machine
5. 4424094 - Fabric shearing and heating tool