Growing community of inventors

Hartsdale, NY, United States of America

Randolph W Huff

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.

Forward Citations = 93

Randolph W HuffRory Stephen Smith (5 patents)Randolph W HuffRichard D Peters (4 patents)Randolph W HuffGerhard Thumm (4 patents)Randolph W HuffBruce B Powell (4 patents)Randolph W HuffJames A Nickerson (2 patents)Randolph W HuffAndrew DeLiso (1 patent)Randolph W HuffSan Aranggi Soemardjan (1 patent)Randolph W HuffAndrew Deliso (1 patent)Randolph W HuffRandolph W Huff (8 patents)Rory Stephen SmithRory Stephen Smith (30 patents)Richard D PetersRichard D Peters (14 patents)Gerhard ThummGerhard Thumm (8 patents)Bruce B PowellBruce B Powell (8 patents)James A NickersonJames A Nickerson (5 patents)Andrew DeLisoAndrew DeLiso (1 patent)San Aranggi SoemardjanSan Aranggi Soemardjan (1 patent)Andrew DelisoAndrew Deliso (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

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

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as of
12/27/2025
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