definiens: means those ( i ) tools, processes and methods Controlled byCodexis ; and ( ii ) generally applicable tools, processes and methods which [COMPANY] has the ability to transfer to orlicense to Merck, in each of ( i ) and ( ii ) above : ( a ) used to identify, select, optimize, isolate, modify, engineer, research, develop, make, have made and/or import enzymes, Covered Enzymes and Enzymes, through the recombination and / orrearrangement and/or mutation of genetic material for the creation of genetic diversity, using any methods, including butnot limited to Codexis- 3 – Execution VersionSoftware, in silico, in vitro, and and/or in vivo technologies, ( b ) screening techniques, methodologies and/or processes ofusing the resulting genes and/or proteins to identify and assess their potential utility, ( c ) gene expression methodsapplicable in high throughput screening, ( d ) cultivation of microorganisms, ( e ) techniques for producing, harvesting, and/or purifying proteins, and ( f ) including the [COMPANY] Software, in each of ( a ) – ( f ) above, as described in Exhibit 1.20