Growing community of inventors

North Wales, PA, United States of America

Joseph Chang

Average Co-Inventor Count = 2.67

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.

Forward Citations = 38

Joseph Chang ↔ Renfeng Gao (2 patents)Joseph Chang ↔ Renyuan Gao (1 patent)Joseph Chang ↔ John Finn (1 patent)Joseph ChangJoseph Chang (2 patents)Renfeng GaoRenfeng Gao (6 patents)Renyuan GaoRenyuan Gao (16 patents)John FinnJohn Finn (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Photon-x, Inc. (2 from 33 patents)


2 patents:

1. 6857276 - Temperature controller module

2. D476977 - Optical amplifier

Please report any incorrect information to support@idiyas.com
idiyas.com
as of
12/7/2025
Loading…