Growing community of inventors

Angora, MN, United States of America

Kenneth Walter Holappa

Average Co-Inventor Count = 3.00

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 = 15

Kenneth Walter HolappaWilliam Martin Hertel, Iii (1 patent)Kenneth Walter HolappaDonald Darling (1 patent)Kenneth Walter HolappaKenneth Walter Holappa (1 patent)William Martin Hertel, IiiWilliam Martin Hertel, Iii (6 patents)Donald DarlingDonald Darling (5 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Searobotics Corporation (1 from 1 patent)


1 patent:

1. 8506719 - Robotic submersible cleaning system

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12/17/2025
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