Growing community of inventors

West Des Moines, IA, United States of America

Mark Houlton

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 = 3

Mark HoultonJames A O'Brien (1 patent)Mark HoultonJames W Heller (1 patent)Mark HoultonMark Houlton (1 patent)James A O'BrienJames A O'Brien (6 patents)James W HellerJames W Heller (6 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Other (1 from 832,718 patents)


1 patent:

1. 5396181 - Cardiac catheter testing apparatus

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