HAROUTIUN K. KOUYOUMJIAN was a proflic inventor from Providence. KOUYOUMJIAN held 23 patents ranging from a coffee maker to automobile parts.

His patents were for mainly two different companies, Ward Leonard Electric Company and KEMCO Electric Manufacturing Company. He also registered a few Patents solely under his name.

Radio Broadcast April 1929

Providence Journal
November 8, 1931

Providence Journal
May 28, 1933

US1896316 ELECTRIC CONTROLLING APPARATUS	US1828900 ELECTRIC CONTROLLING APPARATUS
US1812299 ELECTRIC CONTROLLING APPARATUS	US1826890 ELECTRIC CONTROLLING APPARATUS
US1828054 ELECTRICAL CONTROLLING APARATUS	US1219562 ELECTRC FAN AND GENERATOR
US1042691 ELECTROMAGNET CONTROLLING DEVICE	US1024483 ELECTROMAGNET CONTROLLING DEVICE
US1055544 PRESS	US1835115 ELECTRIC CONTROLLING APPARATUS
US1860102 ELECTRIC CONTROLLING APPARATUS	US1219565 COMMUTATOR CONSTRUCT ON
US1219563 MOTOR-VEHICLE CONSTRUCTION	US1875020 ELECTRIC CONTROLLING APPARATUS
US983500 ELECTRIC REGULATOR	US1893289 ELECTRIC CONTROLLING APPARATUS
US1860543 ELECTRIC CONTROLLING APPARATUS	US1790271 MAGNET AND RELAY
US1830232 ELECTRIC CONTROLLING APPARATUS	US1219564 ELECTRIC GENERAOR
US1910172 ELECTRIC CONTROLLING APPARATUS	US1813409 ALTERNATING CURRENT CONTROLLING APPARATUS
US1831013 APPARATUS FOR HEATING LIQUIDS COFFEE MAKING, AND THE LIKE