PCBU SERVICES, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
A62C FIRE-FIGHTING 324
 
  
 
A62D CHEMICAL MEANS FOR EXTINGUISHING FIRES; PROCESSES FOR MAKING HARMFUL CHEMICAL SUBSTANCES HARMLESS, OR LESS HARMFUL, BY EFFECTING A CHEMICAL CHANGE; COMPOSITION OF MATERIALS FOR COVERINGS OR CLOTHING FOR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; COMPOSITION OF MATERIALS FOR TRANSPARENT PARTS OF GAS-MASKS, RESPIRATORS, BREATHING BAGS OR HELMETS; COMPOSITION OF CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS313
 
  
 
C12P FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE 396
 
  
 
C08J WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER- TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C C08F, C08G or C08H 276
 
  
 
C12N MICRO-ORGANISMS OR ENZYMES; COMPOSITIONS THEREOF 2165
 
  
 
A47C CHAIRS 152
 
  
 
B60N VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR 161
 
  
 
C07C ACYCLIC OR CARBOCYCLIC COMPOUNDS 1137
 
  
 
C07D HETEROCYCLIC COMPOUNDS 1161
 
  
 
F16K VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING172

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7654096 Reduced torque valve for cryogenic refrigeratorJan 20, 05Feb 02, 10[F16K, F25B]
6461530 Compositions for the suppression of fireSep 18, 01Oct 08, 02[A62D]
6346203 Method for the suppression of fireFeb 15, 00Feb 12, 02[A62C, A62D]
6112822 Method for delivering a fire suppression composition to a hazardMar 03, 99Sep 05, 00[A62C]
6048033 Seat back frameJan 21, 98Apr 11, 00[A47C, B60N]
5962754 Method for the preparation of 3-bromo-1,1,1-trifluoropropaneOct 07, 98Oct 05, 99[C07C]
5928909 Regioselective .alpha.-hydrolysis of amino acid diesters using pig liver esteraseJan 26, 98Jul 27, 99[C12P]
5773261 Regioselective .alpha.-hydrolysis of amino acid diesters using pig liver esteraseAug 26, 96Jun 30, 98[C12P, C12N]
5728555 Preparation of d-amino acids by direct fermentative meansSep 30, 96Mar 17, 98[C12P, C12N]
5615742 Noncombustible hydrogen gas containing atmospheres and their productionSep 15, 95Apr 01, 97[A62C, A62D]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2007/0276,167 Compositions, Halogenated Compositions, Chemical Production, and Telomerization ProcessesAbandonedJan 28, 05Nov 29, 07[C07C]
6987206 Methods and materials for the preparation and purification of halogenated hydrocarbonsWithdrawnApr 26, 02Jan 17, 06[C07C]
6849194 Methods for preparing ethers, ether compositions, fluoroether fire extinguishing systems, mixtures and methodsExpiredMay 12, 03Feb 01, 05[C09K, C07C, A62C, A62D]
2004/0030,177 Hydrolysis of amino acid diestersAbandonedAug 09, 02Feb 12, 04[C07C]
2003/0236,430 Preparation of protected amino acidsAbandonedJun 21, 02Dec 25, 03[C07C]
6583328 Method for the preparation of 1,1,1,3,3-pentafluoropropene and 1,1,1,3,3-pentafluoropropaneExpiredApr 05, 99Jun 24, 03[C07C]
6476281 Method for the preparation of 1,1,1,3,3-pentafluoropropene and 1,1,1,3,3-pentafluoropropaneExpiredJul 26, 01Nov 05, 02[C07C]
6358714 Materials and methods for the production of D-phenylalanineExpiredApr 19, 95Mar 19, 02[C12P]
6348633 Bromine-containing 1,2-bis(phenyl)difluoromethanes and method of imparting flame retardancy to flammable materialsExpiredJul 02, 01Feb 19, 02[C07C, C08K]
6147226 Synthesis of cyclopentyl 2-thienyl ketone, tiletamine and tiletamine acid addition salts, such as tiletamine hydrochlorideExpiredJan 11, 00Nov 14, 00[C07D]
6049014 Process for the manufacture of tetrabromobisphenol-A with co-production of n-propyl bromideExpiredFeb 19, 98Apr 11, 00[C07C]
6025528 Aqueous method to prepare cyclopropyl methylketone from acetyl-propanolExpiredMar 03, 98Feb 15, 00[C07C]
5986149 Method for recovering alkanols from aqueous HBr-solutionsExpiredApr 03, 98Nov 16, 99[C07C]
5969159 Synthesis of cyclopentyl 2-thienyl ketone tiletamine and tiletamine acid addition salts such as tiletamine hydrochlorideExpiredFeb 16, 99Oct 19, 99[C07D]
5834259 Process and composition for preparing D-aspartic acidExpiredOct 28, 96Nov 10, 98[C12P]
5180859 Process for the production and recovery of halonitroalkanes in high yieldExpiredJul 07, 92Jan 19, 93[C07C]
5124053 Fire extinguishing methods and blends utilizing hydrofluorocarbonsExpiredNov 21, 89Jun 23, 92[A62D]

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