The Charles Machine Works, Inc.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E21B EARTH OR ROCK DRILLING 8832
 
  
 
G01V GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS 2555
 
  
 
E02F DREDGING; SOIL-SHIFTING 2225
 
  
 
1503 AGRICULTURAL MACHINERY1216
 
  
 
B62D MOTOR VEHICLES; TRAILERS 586
 
  
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 4155
 
  
 
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 WAVES4105
 
  
 
H01Q AERIALS 4106
 
  
 
H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY 4116
 
  
 
B60K ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS; AUXILIARY DRIVES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST, OR FUEL SUPPLY, OF PROPULSION UNITS, IN VEHICLES 390

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0211,337 Pullback AssemblyJan 17, 17Jul 27, 17[E21B]
2017/0130,540 Makeup And Breakout System For Horizontal Directional DrillingJul 29, 16May 11, 17[E21B]
2017/0101,746 Trenching AssemblyOct 11, 16Apr 13, 17[E01C]
2017/0022,799 Underground Guidance Using Above-Ground Mesh NetworkJul 21, 16Jan 26, 17[E21B]
2016/0362,232 Apparatus For Sealing A Vacuum Tank DoorJun 11, 15Dec 15, 16[B65D]
2016/0018,551 Device and Method for Tracking a Downhole ToolJul 17, 15Jan 21, 16[G01V]
2015/0211,302 Modular Compaction Boring Machine SystemJan 27, 15Jul 30, 15[E21B]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9850715 Modular compaction boring machine systemJan 27, 15Dec 26, 17[E21B]
9834995 Horizontal directional drill pipe drive connection with locking featureDec 07, 15Dec 05, 17[F16B, F16D, E21B]
9828805 Reamer with replaceable cuttersApr 10, 14Nov 28, 17[E21B]
9821953 Apparatus for sealing a vacuum tank doorJun 11, 15Nov 21, 17[B65D, F16J, E02F]
D803273 Control panel barsJun 30, 16Nov 21, 17[1504]
9803433 Dual member pipe joint for a dual member drill stringMay 05, 15Oct 31, 17[E21B]
D800194 Sprocket with mud reliefSep 12, 16Oct 17, 17[1599]
9765574 Dual-member pipe joint for a dual-member drill stringJul 26, 13Sep 19, 17[E21B]
9752301 Trenching systemAug 13, 14Sep 05, 17[E02F]
9752384 Electric horizontal directional drilling machine systemNov 17, 14Sep 05, 17[H02J, E21B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2017/0022,800 Tracker With Electronic Compass And Method Of UseAbandonedJul 21, 16Jan 26, 17[E21B, G01V]
2016/0122,970 Linked Tooth Digging ChainAbandonedOct 23, 15May 05, 16[E02F]
2016/0108,605 Vibratory Trench ScoopAbandonedOct 21, 15Apr 21, 16[E02F]
2016/0018,133 Folded Ground Coupled Heat Exchange System And Method Of InstallationAbandonedAug 08, 12Jan 21, 16[F24J, B23P]
2014/0237,867 Spring-Loaded Sod Cutter For Vibratory PlowAbandonedFeb 27, 14Aug 28, 14[E02F]
2014/0243,133 Cantilevered Boom SprocketAbandonedFeb 24, 14Aug 28, 14[F16H]
2013/0119,992 Automatic Locator Antenna Tuning SystemAbandonedNov 13, 12May 16, 13[G01V]
2013/0057,412 System For Wireless Communication Along A Drill StringAbandonedNov 02, 12Mar 07, 13[G01V]
2013/0014,992 Data Transfer In A Two-Pipe Directional Drilling SystemAbandonedMar 01, 12Jan 17, 13[E21B]
2012/0255,779 Automatic Control System For Connecting A Dual-Member PipeAbandonedJun 13, 12Oct 11, 12[E21B]
2011/0278,065 Automatic Control System For Connecting A Dual-Member PipeAbandonedJul 28, 11Nov 17, 11[E21B]
2011/0005,838 HORIZONTAL DIRECTIONAL DRILLING SYSTEMAbandonedMar 06, 09Jan 13, 11[E21B]
2010/0301,866 Capacitive Detection SystemAbandonedMay 27, 10Dec 02, 10[E21B, G01V]
2010/0168,933 TURRET MOUNTED COMPACT TOOL CARRIERAbandonedJun 09, 06Jul 01, 10[G06F, B60P]
2010/0012,377 System And Apparatus For Locating And Avoiding An Underground ObstacleAbandonedSep 28, 09Jan 21, 10[E21B]
2009/0183,917 SYSTEM AND APPARATUS FOR LOCATING AND AVOIDING AN UNDERGROUND OBSTACLEAbandonedNov 16, 06Jul 23, 09[E21B]
2009/0185,865 SOFT EXCAVATION POTHOLING METHOD AND APPARATUSAbandonedNov 16, 06Jul 23, 09[F16L]
2009/0110,493 Silt Fence Installation System And MethodAbandonedDec 02, 08Apr 30, 09[E02D]
2009/0095,946 Silt Fence System And Method Of ManufactureAbandonedOct 10, 08Apr 16, 09[E04H]
2009/0007,460 Earth sawAbandonedJan 21, 05Jan 08, 09[E02F]

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