ALEXANDRIA, Va., March 19 -- United States Patent no. 12,251,219, issued on March 18, was assigned to The General Hospital Corp. (Boston).

"Systems, methods, and apparatus for differential phase contrast microscopy by transobjective differential epi-detection of forward scattered light" was invented by Charles P. Lin (Arlington, Mass.) and Hari Prasad Paudel (Boston).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems, methods, and apparatus for differential phase contrast microscopy by transobjective differential epi-detection of forward scattered light are provided. In some embodiments, a microscope objective comprises: a housing with mounting threads at a second end; optical components defining an optic...