Growing community of inventors

Sylvania, OH, United States of America

Darryl Allen

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 = 16

Darryl AllenDavid L Westfall (1 patent)Darryl AllenDarryl Allen (1 patent)David L WestfallDavid L Westfall (14 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Other (1 from 832,966 patents)


1 patent:

1. 5814115 - Grease filter for exhaust systems in commercial food preparation

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1/19/2026
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