Average Co-Inventor Count = 2.29
ph-index = 2
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. Illinois Tool Works Inc. (3 from 7,575 patents)
2. Other (1 from 832,680 patents)
4 patents:
1. D1075861 - Welding device
2. D1040876 - Welding device
3. D980297 - Welding device
4. 8085955 - Electromagnetic lever diaphragm audio transducer