Average Co-Inventor Count = 1.33
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. Parker Kinetic Designs, Inc. (4 from 5 patents)
2. Astec Industries, Inc. (2 from 130 patents)
3. Other (1 from 832,912 patents)
7 patents:
1. 5018590 - Electromagnetic drilling apparatus
2. 4984131 - Electrical disconnect method and apparatus
3. 4899834 - Electromagnetic drilling apparatus
4. 4722402 - Electromagnetic drilling apparatus and method
5. 4656328 - Welding fixture
6. D259039 - Homopolar generator
7. 4246507 - Removable brush mechanism for a homopolar generator