Growing community of inventors

Pottstown, PA, United States of America

David H Heistand

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

David H HeistandWilliam A Conard (1 patent)David H HeistandJohn T Connor (1 patent)David H HeistandDavid H Heistand (1 patent)William A ConardWilliam A Conard (10 patents)John T ConnorJohn T Connor (7 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. The West Company (1 from 94 patents)


1 patent:

1. 4384653 - Tip-off cap and closure for containers

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12/16/2025
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