Growing community of inventors

Elon College, NC, United States of America

Drey Johnson

Average Co-Inventor Count = 3.24

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 = 5

Drey JohnsonRobert I Farrow (4 patents)Drey JohnsonRobert Gaude (3 patents)Drey JohnsonPaul DeMint (2 patents)Drey JohnsonRay O McNeill (2 patents)Drey JohnsonDrey Johnson (4 patents)Robert I FarrowRobert I Farrow (11 patents)Robert GaudeRobert Gaude (3 patents)Paul DeMintPaul DeMint (2 patents)Ray O McNeillRay O McNeill (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Concept Design (4 from 8 patents)


4 patents:

1. 5181667 - Cassette loader with precision cassette extraction and winding reference

2. 5181669 - Cassette loader with simultaneous leader tape equalization and loading

3. 5150849 - Cassette loader with improved leader tape extraction and method

4. 5150847 - Cassette loader with leader tape extraction and transfer, and method

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idiyas.com
as of
12/29/2025
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