Donald F. Douglas

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Kansas City, MO, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and system for facilitating location-based services
- Patent number 7,197,322
- Issue date Mar 27, 2007
- Sprint Spectrum L.P.
- Terry Rayburn
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and system for facilitating location-based services
- Patent number 6,816,735
- Issue date Nov 9, 2004
- Sprint Spectrum L.P.
- Terry Rayburn
- G06 - COMPUTING CALCULATING COUNTING