Douglas P. Tvedt

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Brookings, SD, US

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Patents Grantslast 30 patents

Information Patent Grant
LED display module having a metallic housing and metallic mask
- Patent number 8,154,864
- Issue date Apr 10, 2012
- Daktronics, Inc.
- Nathan L. Nearman
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Multiple seal electronic display module having displacement springs
- Patent number 7,869,198
- Issue date Jan 11, 2011
- Daktronics, Inc.
- Nathan L. Nearman
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS