1. GPS (Global Position System)
Amruth Pabba and Brandon Molenda (p1)

2. When was this invented
GPS was created and realized by the U.S. Department of Defense (DoD) and was originally run with 24 satellites. It started initially in It became fully operational in A total of 70 GPS Satellites have been launched and 24 are operational and 6 are backups. GPS satellite amount is constantly fluctuating.
Initial GPS Equipment

3. What was it trying to address
It's aim was to provide global coverage of 5 services to the US military:
1) Position
2) Altitude (you could argue that altitude is part of your position but more services make it sound better value for money)
3) Time
4) Global detection of thermonuclear detonations (This use was classified originally)
5) Still classified.

4. Who was the inventor
Bradford Parkinson, Roger L. Easton, and Ivan A. Getting are credited with inventing it.

5. Current Patents for GPS

6. Materials Used / Design Process
GPS technology is private and hasn't been revealed to the public
iPhone GPS

7. Improvements over Time
Better Algorithm
More Satellites
Newer technologies that cross-connect
GLONASS, IndGPS, JapGPS

8. Product Users Military Equipment (Missiles, Jets, etc.) Avionics
NASA Rockets
General People to navigate
ISS

9. Global Impact
GPS has changed the way we navigate. GPS allows us to get to a place lot easier than before. Without GPS, the world would be very different. GPS guided missiles help eliminate dangerous targets as well.

10. Improvements we would make
I would improve the algorithm and tracking accuracy. The current algorithms is processor intensive and the accuracy is not stable. Creating a new algorithm and using more satellites would improve this technology.

11. Timeline

12. Resources http://inventors.about.com/od/gstartinventions/a/gps.htm