Average Co-Inventor Count = 3.60
ph-index = 3
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 (2 from 1,246 patents)
2. Louis Marx & Co., Inc. (1 from 28 patents)
3 patents:
1. 4424094 - Fabric shearing and heating tool
2. 4406723 - Fabric repairing method
3. 4265449 - Simulated bowling game