Growing community of inventors

York, PA, United States of America

Ronald J Lievens

Average Co-Inventor Count = 2.00

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 = 6

Ronald J LievensTedd P Johnson (1 patent)Ronald J LievensRonald J Lievens (1 patent)Tedd P JohnsonTedd P Johnson (7 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. American Standard Inc. (1 from 1,121 patents)


1 patent:

1. 4830274 - Pressure independent VAV valve with pressure dependent backup

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as of
12/19/2025
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