David S. Sprague

Person

Portola Valley, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Mobile network with automatic position reporting between member units
- Patent number 5,661,652
- Issue date Aug 26, 1997
- Trimble Navigation Limited
- David S. Sprague
- G01 - MEASURING TESTING
Information Patent Grant
Outdoor movie camera GPS-position and time code data-logging for sp...
- Patent number 5,642,285
- Issue date Jun 24, 1997
- Trimble Navigation Limited
- Arthur N. Woo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Map reading system for indicating a user's position on a published...
- Patent number 5,596,500
- Issue date Jan 21, 1997
- Trimble Navigation Limited
- David S. Sprague
- G01 - MEASURING TESTING
Information Patent Grant
Time-keeping system and method for synchronizing independent record...
- Patent number 5,479,351
- Issue date Dec 26, 1995
- Trimble Navigation Limited
- Arthur Woo
- G11 - INFORMATION STORAGE
Information Patent Grant
GPS receivers with data ports for the uploading and downloading of...
- Patent number 5,450,344
- Issue date Sep 12, 1995
- Trimble Navigation Limited
- Arthur Woo
- G11 - INFORMATION STORAGE
Information Patent Grant
Portable personal navigation tracking system
- Patent number 5,422,816
- Issue date Jun 6, 1995
- Trimble Navigation Limited
- David S. Sprague
- G01 - MEASURING TESTING
Information Patent Grant
Global position system receiver with map coordinate system outputs
- Patent number 5,422,814
- Issue date Jun 6, 1995
- Trimble Navigation Limited
- David S. Sprague
- G01 - MEASURING TESTING

David S. Sprague

Person

Patents Grantslast 30 patents

Mobile network with automatic position reporting between member units

Outdoor movie camera GPS-position and time code data-logging for sp...

Map reading system for indicating a user's position on a published...

Time-keeping system and method for synchronizing independent record...

GPS receivers with data ports for the uploading and downloading of...

Portable personal navigation tracking system

Global position system receiver with map coordinate system outputs