CALWOOD CHEMICAL INDUSTRIES, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
A61L METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES 170

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5869027 Method for odor reductionApr 22, 96Feb 09, 99[A61L]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5833972 Method for odor reductionExpiredAug 15, 97Nov 10, 98[A01N]
5817300 Odor reducing compositionsExpiredJun 02, 97Oct 06, 98[A61K, A61F, A61L]
5688904 Polyaspartic acid catalysisExpiredOct 01, 96Nov 18, 97[C08G]
5635586 Polymers of maleic acid with aminesExpiredMay 22, 95Jun 03, 97[C08G]
5610264 Continuous process for polyaspartic acid synthesisExpiredNov 16, 95Mar 11, 97[C08G]
5552518 Polymers of maleic acid with aminesExpiredMay 22, 95Sep 03, 96[C08G]
5527878 Amino acid copolymers of maleic acidExpiredMay 19, 95Jun 18, 96[C09K, C08G]
5521279 Polymers of maleic acid with aminesExpiredMay 22, 95May 28, 96[C08G]
5519110 Polymers of maleic acid with aminesExpiredMay 22, 95May 21, 96[C08G]
5442038 Polymers of maleic acid with aminesExpiredOct 06, 93Aug 15, 95[C08G]
5408029 Amino acid copolymers of maleic acidExpiredOct 06, 93Apr 18, 95[C08G]
5357004 Copolymers of polyaspartic acidExpiredFeb 14, 94Oct 18, 94[C08G]
5306429 Copolymers of polyamino acids as scale inhibition agentsExpiredOct 29, 92Apr 26, 94[C02F]
5292858 Method of production of copolymers of polyamino acidsExpiredMar 16, 93Mar 08, 94[C08G]
5286810 Salt of polymer from maleic acid, polyamind and ammoniaExpiredApr 07, 93Feb 15, 94[C08G]
5266305 Copolymers of polyamino acids as tartar barrier agentsExpiredOct 29, 92Nov 30, 93[A61K]

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