Patents
Challenge Group owns numerous patents covering the compositions of our novel enzyme products and product candidates,
as well as their use in the industry. As of December 31, 2013, Challenge owned 13 issued patents and 4 patents pending.
In addition, Challenge Group utilizes and offers services under a licensed, robust intellectual property portfolio with patents
covering key technologies in the discovery, optimization, production and use of novel enzyme-based products. Challenge Group
continues to develop new products and technologies.
2011.1.5 Recombinant strains expressing non-starch polysaccharides complex enzymes and its application
2012.2.1 Bacterium agent producing cellulase and its application
2013.3.13 a method to improve the stability of beer brewing process and its special compound enzymes
2013.3.20 an acidic cellulase EGI and its gene and application
2013.6.5A feed-grade pectinase PLA and its gene and application
2013.1.16 High enzyme activity and thermostable N - acyl homoserine lactonase AiiA - AI06 and its coding gene and application
2012.8.22 Thermostable N-acyl homoserine lactonase AiiA - AI96 and its coding gene and application