Growing community of inventors

Newton, MA, United States of America

H W Crowler

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 = 12

H W CrowlerR Langdon Wales (1 patent)H W CrowlerH W Crowler (1 patent)R Langdon WalesR Langdon Wales (18 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Roll Systems, Inc. (1 from 73 patents)


1 patent:

1. 5000394 - Roll support and feed apparatus

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12/21/2025
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