Troy A. Erickson

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Brookings, SD, US

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Patents Grantslast 30 patents

Information Patent Grant
Matrix display with multiple pixel lens and multiple partial parabo...
- Patent number 5,779,351
- Issue date Jul 14, 1998
- Daktronics, Inc.
- Troy A. Erickson
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Visual display panel
- Patent number 5,321,417
- Issue date Jun 14, 1994
- Daktronics, Inc.
- Vernon P. Voelzke
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS