Growing community of inventors

Brazos, TX, United States of America

Mark T Holtzapple

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 = 23

Mark T HoltzappleDonald M Ernst (1 patent)Mark T HoltzappleMark T Holtzapple (1 patent)Donald M ErnstDonald M Ernst (14 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. US Government As Represented by the Secretary of the Army (1 from 8,684 patents)


1 patent:

1. 4825661 - High efficiency, orientation-insensitive evaporator

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12/20/2025
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