Growing community of inventors

Houston, TX, United States of America

David Thomas Hagerman

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 = 0

David Thomas HagermanI John Seward, Jr (1 patent)David Thomas HagermanIrwin John Seward, Jr (1 patent)David Thomas HagermanDavid Thomas Hagerman (2 patents)I John Seward, JrI John Seward, Jr (1 patent)Irwin John Seward, JrIrwin John Seward, Jr (1 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Mpr Services, Inc. (1 from 6 patents)

2. Tessenderio Kerley, Inc. (1 from 2 patents)


2 patents:

1. 10300402 - Thin-film treatment of high-value glycol and amine solvents to remove contaminants

2. 10010809 - Thin-film treatment of high-value glycol and amine solvents to remove contaminants

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as of
12/28/2025
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