Growing community of inventors

Cupertino, CA, United States of America

Robert W Kratt

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 = 219

Robert W KrattJames C Sprout (1 patent)Robert W KrattRobert W Kratt (1 patent)James C SproutJames C Sprout (8 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Other (1 from 832,891 patents)


1 patent:

1. 4994787 - Remote intrusion alarm condition advisory system

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12/31/2025
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