definiens: means all fields of use ; including but not limited to, olefin metathesis technology, includingcompositions of matter and methods of preparation of olefin metathesis catalyst complexes and their use to effect awide variety of olefin metathesis chemistries including, but not limited to, ring - opening metathesis polymerization(ROMP ), ring - closing metathesis ( RCM ), metathesis depolymerization, cross - metathesis, acyclic diene metathesispolymerization ( ADMET ), and metathesis coupling, all of which are useful for the preparation of chemical and materialproducts including, but not limited to, resins, polymers, functional polymers, telechelic polymers, segmentedpolymers, block copolymers, substituted polymers, and oligomers, adhesives, pheromone chemicals, pharmaceuticalintermediates, flavor and fragrance chemicals, fine chemicals, specialty intermediates, performance chemicals, etc.;except as reserved by Caltech and limited by third party licenses granted to U. S. Government, [ * * ] . Limitations to theGrant and Field of this License Agreement are delineated by a listing of the grant, field and term of third party licensesin Exhibit B