Analysis of information sources in references of the Wikipedia article "Marvin Pipkin" in English language version.
Marvin Pipkin is best known as the inventor of the inside-frost process of bulbs for incandescent lamps, which was developed in 1925, as well as the improved process developed in 1947, which consisted of an application of silica to the inside of a bulb.
He continued to work at NELA for many more years and eventually created the Soft-White light bulb nearly 25 years later.
Marvin Pipkin is best known as the inventor of the inside-frost process of bulbs for incandescent lamps, which was developed in 1925, as well as the improved process developed in 1947, which consisted of an application of silica to the inside of a bulb.
He continued to work at NELA for many more years and eventually created the Soft-White light bulb nearly 25 years later.