Average Co-Inventor Count = 1.38
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. Dresser Industries, Inc. (6 from 1,238 patents)
6 patents:
1. 4316417 - Welded side frame column wear plate
2. 4135629 - Coupler knuckle with safety shelf
3. 4090615 - Coupler knuckle assembly
4. 4056065 - Rejection feature for center plate
5. 3985236 - Articulated link coupler
6. 3973681 - Transition casting for use in sills of freight cars