These two were never patented (i.e. the non-mumps version of the K-510 and the K-402).  The mumps was patented by Roy Delgado/KGI.  The grant was awarded in 2010 with expiration in 2027 (i.e., 20 years from the date of application).      An inventor has 12 months from first public disclosure of a patentable invention to file for a patent on that idea.  After that, no patent can be issued.  After 20 years from the submittal of a patent application, the patent runs out: all th
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