Growing community of inventors

Fort Worth, TX, United States of America

John W Coulborn

Average Co-Inventor Count = 2.19

ph-index = 10

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.

Forward Citations = 368

John W CoulbornMell R Thoman (7 patents)John W CoulbornStephen W Smith (5 patents)John W CoulbornV Terrey Hawthorne (1 patent)John W CoulbornC Dale Christie (1 patent)John W CoulbornJohn R Oliver (1 patent)John W CoulbornSamuel R Williams (1 patent)John W CoulbornGlen F Lazar (1 patent)John W CoulbornDon P Nguyen (1 patent)John W CoulbornJohn W Coulborn (12 patents)Mell R ThomanMell R Thoman (10 patents)Stephen W SmithStephen W Smith (28 patents)V Terrey HawthorneV Terrey Hawthorne (20 patents)C Dale ChristieC Dale Christie (9 patents)John R OliverJohn R Oliver (8 patents)Samuel R WilliamsSamuel R Williams (5 patents)Glen F LazarGlen F Lazar (3 patents)Don P NguyenDon P Nguyen (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Trn Business Trust (9 from 81 patents)

2. Trinity Industries, Inc. (2 from 97 patents)

3. Other (1 from 833,002 patents)


12 patents:

1. 6704991 - Method for forming a railway car with improved crosstie connections

2. 6371033 - High capacity integrated railway car truck

3. 6302031 - Sidewall for a railway car

4. 6189456 - High capacity axle for railway freight cars

5. 6138581 - Railway gondola car

6. 6092472 - Composite box structure for a railway car

7. 6000342 - Railway car underframe for an insulated composite boxcar

8. 5890435 - Insulated composite railway boxcar and method

9. 5857414 - Composite box structure for a railway car

10. 5855174 - Railway car underframe for an insulated railway boxcar

11. 5802984 - Load divider assembly and door assembly for a composite railway boxcar

12. 5765485 - Insulated composite railway boxcar and method

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1/22/2026
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