Growing community of inventors

Carson City, NV, United States of America

Fredrick A Roper

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 = 45

Fredrick A RoperRichard James Reeve (1 patent)Fredrick A RoperFredrick A Roper (1 patent)Richard James ReeveRichard James Reeve (9 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Other (1 from 832,812 patents)


1 patent:

1. 5459891 - Invalid lift and transport apparatus

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12/20/2025
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