KNIGHT INFORMATION SYSTEMS, LLC

Patent Owner

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E21B EARTH OR ROCK DRILLING 591
 
  
 
G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR166
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 1446

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2016/0130,899 Expandable Section Mill and MethodNov 10, 14May 12, 16[E21B]
2015/0361,764 Multi-Circulation Valve Apparatus and MethodJun 12, 14Dec 17, 15[E21B]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9863214 Multi-circulation valve apparatus and methodJun 12, 14Jan 09, 18[E21B]
9835011 Multi-window lateral well locator/reentry apparatus and methodJan 03, 14Dec 05, 17[E21B]
8783367 Lateral liner tie back system and methodMay 09, 12Jul 22, 14[E21B]
8316937 Multi-window lateral well locator/reentry apparatus and methodJun 09, 10Nov 27, 12[E21B]
8165848 Method of inspecting equipmentFeb 26, 09Apr 24, 12[G99Z, G01M, G06F]
8069920 Lateral well locator and reentry apparatus and methodApr 02, 09Dec 06, 11[E03B, E21B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2016/0130,900 EXPANDABLE SECTION MILL AND METHODAbandonedJul 20, 15May 12, 16[E21B]
2014/0182,847 Wellhead Sealing System and MethodAbandonedDec 31, 12Jul 03, 14[E21B]

Top Inventors for This Owner

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