Growing community of inventors

Sonora, CA, United States of America

Stephen H Matthews

Average Co-Inventor Count = 3.00

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 = 386

Stephen H MatthewsRonald E Erickson (4 patents)Stephen H MatthewsKevin B Peck (4 patents)Stephen H MatthewsStephen H Matthews (4 patents)Ronald E EricksonRonald E Erickson (8 patents)Kevin B PeckKevin B Peck (5 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Thermtec, Inc. (4 from 8 patents)


4 patents:

1. 5530222 - Apparatus for positioning a furnace module in a horizontal diffusion

2. 5517001 - High performance horizontal diffusion furnace system

3. 5481088 - Cooling system for a horizontal diffusion furnace

4. 5461214 - High performance horizontal diffusion furnace system

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as of
12/24/2025
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