GRINDSTONE CAPITAL

Patent Owner

Watch Compare Add to Portfolio

Stats

Details

Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H04W WIRELESS COMMUNICATION NETWORKS 2186
 
  
 
E21B EARTH OR ROCK DRILLING 195
 
  
 
G01C MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY 1104
 
  
 
G01S RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES1108
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 1446
 
  
 
H04Q SELECTING 1109

Top Patents (by citation)

Upgrade to the Professional Level to View Top Patents for this Owner. Learn More

Recent Publications

  • No Recent Publications to Display

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8823577 Distance separation tracking systemDec 21, 10Sep 02, 14[G08B, G01S]
8825435 Intertial tracking system with provision for position correctionFeb 22, 11Sep 02, 14[G06F, G01P]
8630799 Optical navigation aid within a beacon fieldOct 12, 11Jan 14, 14[G01C]
8176985 Well drilling and production using a surface blowout preventerSep 03, 09May 15, 12[E21B]
8010133 Navigation systemJan 03, 08Aug 30, 11[H04W, G01C]
7983694 Target and base station for a navigation systemMar 21, 08Jul 19, 11[H04W, G01C]
7403783 Navigation systemFeb 17, 05Jul 22, 08[H04Q]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5549976 Reinforced composite material including a magnesium alloy matrix and grahite or carbon fibersExpiredApr 05, 95Aug 27, 96[C22C]

Top Inventors for This Owner

Upgrade to the Professional Level to View Top Inventors for this Owner. Learn More

We are sorry but your current selection exceeds the maximum number of comparisons () for this membership level. Upgrade to our Level for up to -1 comparisons!

We are sorry but your current selection exceeds the maximum number of portfolios (0) for this membership level. Upgrade to our Level for up to -1 portfolios!.