ALEXANDRIA, Va., Jan. 29 -- United States Patent no. 12,211,948, issued on Jan. 28, was assigned to SolAero Technologies Corp. (Albuquerque, N.M.).
"Multijunction solar cells" was invented by Daniel Derkacs (Albuquerque, N.M.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of fabricating multijunction solar cell including an upper solar subcell and having an emitter of p conductivity type with a first band gap, and a base of n conductivity type with a second band gap greater than the first band gap; a lower solar subcell disposed below the upper solar subcell having an emitter of p conductivity type with a third band gap, and a base of n conductivity type with a fourth band gap greater than the third...