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Drey Johnson — 4 Patents

CDConcept & Design: 4 patents #2 of 11Top 20%
Elon, NC: #13 of 37 inventorsTop 40%
North Carolina: #12,022 of 45,564 inventorsTop 30%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Drey Johnson has been granted 4 US patents while listed as an inventor at Concept & Design. The first was granted in 1992 and the most recent in January 1993. Drey Johnson ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Drey Johnson in Elon, NC, US.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5181667 Cassette loader with precision cassette extraction and winding reference positioning means and method Robert I. Farrow, Robert Gaude 1993-01-26
5181669 Cassette loader with simultaneous leader tape equalization and loading Robert Gaude, Robert I. Farrow, Paul DeMint, Ray O. McNeill 1993-01-26
5150847 Cassette loader with leader tape extraction and transfer, and method Robert I. Farrow 1992-09-29
5150849 Cassette loader with improved leader tape extraction and method Robert I. Farrow, Paul DeMint, Robert Gaude, Ray O. McNeill 1992-09-29

Frequent Collaborators

Robert I. Farrow4 shared
Robert Gaude3 shared
Paul DeMint2 shared
Ray O. McNeill2 shared

Nearby-Ranked Inventors

Jagadeesh Kandasamy4
Ross CABOT4
George Ueda4
Franz A. Gruswitz4
Tommy Glimberg4
Vinayakaraddy Gulabal4
Sandra Bittorf4
Aviel FOGEL4
Eric Matthew Walton4