Bergwerksverband GmbH

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E21B EARTH OR ROCK DRILLING 393
 
  
 
B01D SEPARATION 1133
 
  
 
B01J CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 1108
 
  
 
C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 1119
 
  
 
C10B DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS 118
 
  
 
E02B HYDRAULIC ENGINEERING 117
 
  
 
E02D FOUNDATIONS; EXCAVATIONS; EMBANKMENTS 122

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5609731 Process for gas pressure regulation in the retort of a coke ovenMar 02, 95Mar 11, 97[C10B]
5560437 Telemetry method for cable-drilled boreholes and method for carrying it outJul 25, 94Oct 01, 96[F21B, E21B]
5553677 Survey process for cable core borings and device for implementing itFeb 10, 95Sep 10, 96[E21B]
5498589 Process for the production of carbon molecular sievesMar 21, 94Mar 12, 96[B01J]
5108467 Process for at least partially separating a gaseous component from a mixture of gaseous componentsMar 07, 91Apr 28, 92[B01D]
RE31946 Process for consolidating and sealing off geological and artificially deposited rock and earth formationsDec 29, 83Jul 16, 85[C08G, E02B, E02D, E21B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5517920 Device for sequentially firing electrical detonatorsExpiredMar 02, 95May 21, 96[F23Q, F42B]
5467018 Method of processing transient electromagnetic measurements in geophysical analysisExpiredNov 12, 92Nov 14, 95[G01V]
5439491 Fluidized bed generator for allothermic gasification of coalExpiredApr 21, 94Aug 08, 95[C10J]
5395485 Reactor chamber door for large-scale coking reactorsExpiredDec 17, 92Mar 07, 95[C10B]
5360260 Tunneling machine with radially sweeping tool carriersExpiredMay 19, 93Nov 01, 94[E21D, F21B]
5346515 Fluidized bed gas generator for allothermic gasification of coalExpiredOct 19, 92Sep 13, 94[C10J]
5275640 Process for obtaining nitrogen from air or nitrogen-containing gases by pressure swing adsorption on carbon molecular sievesExpiredMar 04, 92Jan 04, 94[B01D]
5248651 Process for the production of carbon molecular sievesExpiredJun 03, 92Sep 28, 93[C01B, B01J, B01D]
5210954 ClinometerExpiredNov 27, 91May 18, 93[G01C]
5181633 Container for bulk material with discharge chuteExpiredJun 21, 91Jan 26, 93[B65G]
5179058 Process for manufacturing a carbonaceous catalyst for the reduction of nitrogen oxides in exhaust gasesExpiredMay 30, 91Jan 12, 93[B01J, B01D]
5128021 Pitch from coal tar pitch, method of its production, as well as application of such pitch materialExpiredAug 03, 89Jul 07, 92[C10G, C10C]
5089048 Process for helium enrichmentExpiredNov 17, 89Feb 18, 92[B01D]
5080694 Process for helium recoveryExpiredNov 17, 89Jan 14, 92[B01D]
5069795 Process for separating hydrocarbons from waste waterExpiredApr 05, 89Dec 03, 91[C02F, B01D]
5064444 Process for the allothermic gasification of coalExpiredMay 19, 89Nov 12, 91[C10J]
5064801 Process for manufacturing a carbon catalystExpiredOct 24, 89Nov 12, 91[C01B, B01J, B01D]
5018919 Combined rigid profile and stretching roof bolt with expansion elementExpiredMar 12, 90May 28, 91[F16B]
5007487 Method and apparatus for making drill holes under spatially restricted conditionsExpiredFeb 12, 90Apr 16, 91[E21B]
4990220 Coking reactorExpiredAug 22, 89Feb 05, 91[C10B]

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