MEESPIERSON N.V.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C07F ACYCLIC, CARBOCYCLIC, OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM, OR TELLURIUM 169
 
  
 
C08K USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS 1101
 
  
 
E21B EARTH OR ROCK DRILLING 195
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 1205
 
  
 
G01V GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS 179

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5874494 Phosphites, process for producing them and their useAug 26, 97Feb 23, 99[C07F, C08K]
5571962 Method and apparatus for analyzing drill cuttingsAug 13, 93Nov 05, 96[E21B]
5237854 Unsteady-state profile permeameter - method and apparatusApr 24, 92Aug 24, 93[G01N]
5193059 Method for identifying and characterizing hydraulic units of saturated porous media: tri-kappa zoning processOct 28, 91Mar 09, 93[G01V]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5360972 Method for improving chemometric estimations of properties of materialsExpiredAug 17, 93Nov 01, 94[G01J]
5178005 Sample sleeve with integral acoustic transducersExpiredJul 02, 90Jan 12, 93[G01H, E21B]
5179598 Method for identifying and displaying particular features of an objectExpiredMay 31, 90Jan 12, 93[G06K]
5009100 Down hole reservoir fluid samplerExpiredNov 16, 89Apr 23, 91[E21B]
4864846 Self-cleaning poppet valve for a core testing apparatusExpiredOct 17, 88Sep 12, 89[G01N]
4845503 Electromagnetic digitizerExpiredFeb 05, 88Jul 04, 89[G01S]
4839516 Method for quantitative analysis of core samplesExpiredNov 06, 87Jun 13, 89[G01N]
4834210 Apparatus for generating seismic wavesExpiredDec 21, 87May 30, 89[G01V]
4799389 Tandem sampler actuation deviceExpiredFeb 19, 87Jan 24, 89[G01N]
4739663 Acoustically monitored manometerExpiredJan 23, 87Apr 26, 88[G01L]
4685326 Resonant determination of saturation changes in rock samplesExpiredMar 10, 86Aug 11, 87[G01N]
4638662 Tank leakage detectorExpiredNov 12, 85Jan 27, 87[G01F]
4587857 Method for mounting poorly consolidated core samplesExpiredOct 18, 84May 13, 86[G01N]
4566311 Mercury pumpExpiredSep 10, 84Jan 28, 86[G01N]
4562726 Method and apparatus for testing the compressibility of subterranean samplesExpiredJul 02, 84Jan 07, 86[G01N]
4509904 Metering pumpExpiredOct 04, 83Apr 09, 85[F04B]
4419879 Particle measuring apparatusExpiredOct 16, 81Dec 13, 83[G01N]
4419314 Method of coating core samplesExpiredMay 26, 81Dec 06, 83[B29C]
4402229 Cable tension measuring apparatusExpiredJul 17, 81Sep 06, 83[G01L]
4366701 Octane measuringExpiredJun 16, 80Jan 04, 83[G01N]

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