TETRA INVESTMENT HOLDING CO., INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C01B NON-METALLIC ELEMENTS; COMPOUNDS THEREOF277
 
  
 
C01G COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F 237
 
  
 
C01C AMMONIA; CYANOGEN; COMPOUNDS THEREOF 113
 
  
 
C01F COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS 120
 
  
 
C22B PRODUCTION OR REFINING OF METALS 127

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6117408 Method of producing zinc bromideJun 29, 99Sep 12, 00[C01B, C01G]
6036937 Method for producing zinc bromideNov 18, 98Mar 14, 00[C01B]
5951954 Method for manufacturing clear brine fluids from impure zinc feedstockDec 18, 97Sep 14, 99[C22B, C01G]
5290531 Method of making ammonium bromide and calcium bromideMar 18, 92Mar 01, 94[C01C, C01F]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4836941 Clear brine fluidsExpiredJan 29, 86Jun 06, 89[C09K, E21B]
4490262 Method of servicing wellboresExpiredNov 24, 81Dec 25, 84[E21B]
4465601 Composition and method for servicing wellboresExpiredJan 11, 82Aug 14, 84[E21B]

Top Inventors for This Owner

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