(under subclass 200) Compositions containing an enzyme or a micro-organism which is living when placed in the well.
SEE OR SEARCH CLASS
166, Wells,
246, for well processes proper for Class 166 according to the Class 166 main class definitions involving the use of a micro-organism.
435, Chemistry: Molecular Biology and Microbiology,
183+, for enzyme containing compositions and subclasses 243+ for compositions containing micro-organisms which are nonspecific to well treating and subclasses 262+ for compositions containing enzymes or micro-organisms used to destroy hazardous or toxic waste; liberate, separate, or purify a preexisting compound or composition; or to clean objects or textiles.
