Average Co-Inventor Count = 1.25
ph-index = 3
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. Other (3 from 832,680 patents)
2. International Business Machines Corporation (1 from 164,108 patents)
3. Albert C. Ruocchio & Associates, Inc. (1 from 1 patent)
5 patents:
1. 6910424 - Movable model train car parts to aid model train maneuverability as it travels on model railroad track
2. 6907828 - Model train cars
3. 6883758 - Reed relay for remote magnetic operation of model trains
4. 6231421 - Low power illumination system for scale models
5. 5244402 - Socket for multiple types of telephone plugs