Average Co-Inventor Count = 2.62
ph-index = 6
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. Thyssen Elevator Capital Corp. (3 from 25 patents)
2. Thyssenkrupp Elevator Corporation (2 from 22 patents)
3. Thyssenkrupp Elevator Capital Corporation (2 from 13 patents)
4. Other (1 from 832,843 patents)
8 patents:
1. 9567188 - Absolute position door zone device
2. 8733507 - Multicar zoned elevator system
3. 8397873 - Zoned elevator system
4. 8100230 - Elevator system with virtual landing
5. 7841450 - Twin elevator systems
6. 7334665 - Interlock wiring communication system for elevators
7. 7246689 - Self-powered elevator button
8. 5752869 - Toy construction set