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Littleton, CO, United States of America

Donald Edward Coffey

Average Co-Inventor Count = 1.00

ph-index = 2

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

Donald Edward CoffeyDonald Edward Coffey (2 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Other (2 from 832,761 patents)


2 patents:

1. 6695538 - Drainage pipe support/diverter system

2. 6517283 - Cascading chute drainage system

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12/16/2025
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