Average Co-Inventor Count = 2.00
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. Trn Business Trust (2 from 81 patents)
2. Trinity Industries, Inc. (1 from 97 patents)
3 patents:
1. 7849801 - Protective housing assembly for a tank car manway
2. 6910427 - Security device and method to prevent unauthorized discharge of contents from a tank
3. 6694889 - Siphon drainpipe system and method for a railway tank car