definiens: means any potentially patentable or patented invention conceived by oron behalf of one or both Parties and/or its Affiliates, employees, agents or independent contractors in thecourse of conducting its or their activities under an Approved Research Plan, in each case directedSpecifically to [COMPANY] Technology related to a ) ReCode, b ) EuCode, or c ) Linker Technology ( AmbrxTechnology directed Specifically to a ), b ), and c ) collectively referred to as ), and shall include, Page 2 without limitation, Joint Inventions, but shall specifically exclude Compound Inventions that are not directedSpecifically to Non - Natural Amino Acid Technology . For purposes of this definition : i ) and mean the design, creation, modification and/or generation of Compounds through theincorporation, substitution or addition of one or more non - naturally encoded amino acids ( i.e., amino acidsother than the 20 naturally - encoded amino acids ) using orthogonal tRNA / aminoacyl - tRNA pairs, includingnon - naturally encoded amino acids providing one or more points of site - specific attachment for a drug, intothe amino acid sequence of the polypeptide comprising such Compounds ; and ii ) means any technology in which a functional group, such as, but not limited to, a chemical, carbohydrate orpolypeptide, is used to link or attach, by a covalent bond or otherwise, one or more drugs Specifically to apolypeptide synthesized using ReCode or EuCode to form a polypeptide drug conjugate . As used herein, shall mean that the invention is a small molecule, protein, carbohydrate, nucleicacid, cell, vector, etc ., that is specially adapted for use with a non - natural amino acid, and not moregenerally with natural amino acids or other substrates such as small molecule ligands, proteins, carbohydrates or nucleic acids