Affy licensed the technology, called LADA, from Genelabs in December 2002. According to the company, the amendment converts the license to a "fully paid up non-exclusive license" and eliminates royalties and fees that were payable under the original agreement.
The license covers inventions covered under US patent number 6,107,023, entitled "DNA Amplification and Subtraction Techniques," as well as certain international patents. The patent claims "a method of amplifying nucleic acids by attaching DNA linkers of a known sequence to the ends of unknown DNA sequences which are targeted for amplification," Genelabs said.
"By adding these linkers to targeted DNA molecules, users can readily design and construct primers complementary to the attached linkers and amplify the unknown, targeted DNA sequences," the company added.