MHWIRTH AS

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E21B EARTH OR ROCK DRILLING 2175
 
  
 
B66D CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS 417
 
  
 
G05B CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS 398
 
  
 
B66C CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES 229
 
  
 
F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR 243
 
  
 
B25J MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES 157
 
  
 
B61B RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR 117
 
  
 
F16L PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL169
 
  
 
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
 
  
 
G01V GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS 179

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2018/0044,145 LIFTING ARRANGEMENTFeb 03, 16Feb 15, 18[F15B, B66D, B66C]
2017/0350,213 DRILLING RISER PROTECTION SYSTEMNov 12, 15Dec 07, 17[E21B]
2017/0241,217 GRIPPING BLOCK ARRANGEMENT AND METHOD OF USEJul 03, 15Aug 24, 17[E21B]
2017/0145,805 METHOD AND SYSTEM FOR DETERMINING THE STATE OF A DRILLING OPERATIONNov 16, 16May 25, 17[E21B]
2017/0116,582 MAINTENANCE SYSTEM AND METHOD FOR A MACHINE USED IN DRILLING OPERATIONSOct 21, 16Apr 27, 17[G06Q]
2017/0023,920 IMPROVED METHOD FOR TESTING A CONTROL SYSTEMFeb 23, 15Jan 26, 17[G05B]
2017/0009,537 COMPACT COMPENSATING CYLINDERFeb 17, 15Jan 12, 17[E21B]
2016/0215,587 A DEEP WATER DRILLING RISER PRESSURE RELIEF SYSTEMJun 27, 14Jul 28, 16[E21B]
2016/0194,924 MOUSEHOLE APPARATUSJul 28, 14Jul 07, 16[E21B]
2016/0137,461 LIFTING ARM ASSEMBLY AND METHOD OF CHANGING A HOLDER IN SAID LIFTING ARM ASSEMBLYJun 03, 14May 19, 16[E21B, B66C]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9869158 Deep water drilling riser pressure relief systemJun 27, 14Jan 16, 18[E21B]
9856117 Lifting arm assembly and method of changing a holder in said lifting arm assemblyJun 03, 14Jan 02, 18[E21B, B66C, E02F]
9828847 Method for predicting hydrate formationMay 21, 15Nov 28, 17[E21B, G01V]
9759025 Method for detecting wellbore influxMay 20, 15Sep 12, 17[E21B]
9752397 Lifting arrangement for lifting a pipeJun 13, 14Sep 05, 17[E21B]
9732569 Lifting arm arrangement for lifting a pipe, and a method for operating same lifting arm arrangementSep 29, 14Aug 15, 17[B66F, E21B]
9579802 Gripping device with adjustable diameter and method of operatingMay 20, 14Feb 28, 17[B25J, E21B]
9422946 Antenna assembly for piston accumulatorsAug 27, 13Aug 23, 16[F16L, F15B, H01Q, G01S]
9359837 Multi capacity riser tensionersDec 05, 13Jun 07, 16[E02B, E21B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2016/0075,344 MACHINE FOR MANIPULATING PIPESAbandonedApr 28, 14Mar 17, 16[B61B, E21B]
2016/0032,665 APPARATUS FOR LIFTING AND/OR MOVING OPERATIONS OF DRILLING EQUIPMENTAbandonedApr 09, 14Feb 04, 16[E21B]
2015/0233,399 REFLECTOR FOR PISTON ACCUMULATORSAbandonedAug 29, 13Aug 20, 15[F15B, H01Q, G01S]
2014/0238,685 LOCKING MECHANISMAbandonedOct 11, 12Aug 28, 14[E21B]

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