The Bureau of Labor Statistics reports that occupational therapists made $74,970 a year on average in May 2011. The top 10 percent of workers in the field made over $104,350 and the bottom 10 percent earned less than $49,980. Half of workers in the occupation made between $61,520 and $88,790 a year.
These patents covered a carbon rod in a nitrogen filled glass cylinder, and differed substantially from the first commercially practical bulb invented by Edison. Edison's major innovation was the first industrial research lab, which was built in Menlo Park, New Jersey. It was built with the funds from the sale of Edison's quadruplex telegraph.
Love of Invention. Edison moved to New York City in the middle of 1869. A friend, Franklin L. Pope, allowed Edison to sleep in a room at Samuel Laws' Gold Indicator Company where he was employed. When Edison managed to fix a broken machine there, he was hired to manage and improve the printer machines.