A claim for an invention "comprising" A, B, and C also generally claims inventions that include other elements. Such claims are usually within the statuary categories of processes, machines, or articles of manufacture.
A claim for an invention "consisting of" A, B, and C, however, does not generally claim inventions that include other elements. Such claims are usually usually within the statutory category of "compositions of matter" which includes such things as useful drug or chemical mixtures.
Here's a link to the relevant U.S. Manual of Patent Examining Procedure (MPEP) section:
A claim for an invention "comprising" A, B, and C also generally claims inventions that include other elements. Such claims are usually within the statuary categories of processes, machines, or articles of manufacture.
A claim for an invention "consisting of" A, B, and C, however, does not generally claim inventions that include other elements. Such claims are usually usually within the statutory category of "compositions of matter" which includes such things as useful drug or chemical mixtures.
Here's a link to the relevant U.S. Manual of Patent Examining Procedure (MPEP) section:
https://mpep.uspto.gov/RDMS/MPEP/e8r9#/current/d0e200824.htm...