Growing community of inventors

Pittsburgh, PA, United States of America

Richard A Evans

Average Co-Inventor Count = 4.80

ph-index = 1

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 = 5

Richard A Evans ↔ Walter Ray Laster (1 patent)Richard A Evans ↔ Roy E Wootton (1 patent)Richard A Evans ↔ David B Berrong (1 patent)Richard A Evans ↔ Richard P Kunkle (1 patent)Richard A Evans ↔ Harold S Lessure (1 patent)Richard A Evans ↔ George W Sanford (1 patent)Richard A Evans ↔ Dale M Matuza (1 patent)Richard A Evans ↔ R Michael Roidt (1 patent)Richard A EvansRichard A Evans (2 patents)Walter Ray LasterWalter Ray Laster (26 patents)Roy E WoottonRoy E Wootton (11 patents)David B BerrongDavid B Berrong (7 patents)Richard P KunkleRichard P Kunkle (6 patents)Harold S LessureHarold S Lessure (3 patents)George W SanfordGeorge W Sanford (1 patent)Dale M MatuzaDale M Matuza (1 patent)R Michael RoidtR Michael Roidt (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Westinghouse Electric Corporation (1 from 8,033 patents)

2. Gas Research Institute (1 from 645 patents)


2 patents:

1. 6576905 - Method and assembly for gas detection via a convergent birefringent filter

2. 5517862 - Apparatus and method for measuring ventilation flow exiting a spinning

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as of
12/17/2025
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