Growing community of inventors

Pittsburgh, PA, United States of America

Stephen Spencer

Average Co-Inventor Count = 5.00

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 = 29

Stephen SpencerDonald K MacDonald (2 patents)Stephen SpencerJoseph M Ballay (2 patents)Stephen SpencerJohn Crowley (2 patents)Stephen SpencerMichael McManus (1 patent)Stephen SpencerDavid Bishop (1 patent)Stephen SpencerStephen Spencer (2 patents)Donald K MacDonaldDonald K MacDonald (8 patents)Joseph M BallayJoseph M Ballay (6 patents)John CrowleyJohn Crowley (3 patents)Michael McManusMichael McManus (14 patents)David BishopDavid Bishop (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Maya Design, Inc. (2 from 2 patents)


2 patents:

1. 9403400 - Modular portable writing and projection system having variable curvature

2. 8596600 - Collaborative panel system

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as of
12/6/2025
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