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Appleton, WI, United States of America

John Vollrath

Average Co-Inventor Count = 2.00

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 = 12

John VollrathWarren Edward Herwig (2 patents)John VollrathJohn Vollrath (2 patents)Warren Edward HerwigWarren Edward Herwig (14 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. The Miller Group, Ltd. (2 from 7 patents)


2 patents:

1. 5528010 - Method and apparatus for initiating electric arc spraying

2. 5482734 - Method and apparatus for controlling an electric arc spraying process

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12/7/2025
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