Its trademark usage was acquired successively by the Volta Graphophone Company, then the American Graphophone Company, the North American Phonograph Company, and finally by the Columbia Phonograph Company (later to become Columbia Records), all of which either produced or sold Graphophones.
Research and development 
Among their innovations, the researchers experimented with lateral recording techniques as early as 1881. Contrary to the vertically-cut grooves of Edison phonographs, the lateral recording method used a cutting stylus that moved from side to side in a "zig zag" pattern across the record. While cylinder phonographs never employed the lateral cutting process commercially, this was later to become the primary method of phonograph disc recording.
Bell and Tainter also developed wax-coated cardboard cylinders for their record cylinders, instead of Edison's cast iron cylinder which was covered with a removable film of tinfoil (the actual recording medium) which was prone to damage during installation or removal. Tainter received a separate patent for a tube assembly machine to automatically produce the coiled cardboard tubes which served as the foundation for the wax cylinder records. The shift from tinfoil to wax resulted in increased sound fidelity as well as record longevity.
Besides being far easier to handle, the wax recording medium also allowed for lengthier recordings and created superior playback quality. Additionally the Graphophones initially deployed foot treadles to rotate the recordings, then wind-up clockwork drive mechanisms, and finally migrated to electric motors, instead of the manual crank that was used on Edison's phonograph.
In 1885, when the Volta Laboratory Associates were sure that they had a number of practical inventions, they filed patent applications and began to seek out investors. The Volta Graphophone Company of Alexandria, Virginia, was created on January 6, 1886 and incorporated on February 3, 1886. It was formed to control the patents and to handle the commercial development of their sound recording and reproduction inventions, one of which became the first Dictaphone.
After the Volta Associates gave several demonstrations in the City of Washington, businessmen from Philadelphia created the American Graphophone Company on March 28, 1887, in order to produce and sell the machines for the budding phonograph marketplace. The Volta Graphophone Company then merged with American Graphophone, which itself later evolved into Columbia Records. The Howe Machine Factory (for sewing machines) in Bridgeport, Connecticut, became American Graphophone's manufacturing plant. Tainter resided there for several months to supervise manufacturing before becoming ill, but later went on to continue his inventive work for many years. The small Bridgeport plant which was initially able to produce three or four machines daily later became, as a successor firm, the Dictaphone Corporation.
Subsequent developments 
Shortly after American Graphophone's creation, Jesse H. Lippincott used nearly $1 million of an inheritance to gain control of it, as well as the rights to the Graphophone and the Bell and Tainter patents. He directly invested $200,000 into American Graphophone, and agreed to purchase 5,000 machines yearly. Not long later, Lippincott purchased the Edison Speaking Phonograph Company and its patents for US$500,000. He then created the North American Phonograph Company in 1888 to consolidate the national sales rights of both the Graphophone and the Edison Speaking Phonograph. In the early 1890s Lippincott fell victim to the unit's mechanical problems and also to resistance from stenographers, resulting in the company's bankruptcy. This would postpone the popularity of the Graphophone until 1889 when Louis Glass, manager of the Pacific Phonograph Company would popularize it again through the promotion of nickel-in-the-slot 'entertainment' cylinders.
The trade name Graphophone was used by the successor of the American Graphophone Company, Columbia Records, as the name for their version of the phonograph. The early machines compatible with Edison cylinders were modified treadle machines: the upper-works attached to a spring or electric motor (a Type K electric) in a boxy case, which could record and play back the old Bell and Tainter cylinders. Some machines, like the Type G, used new upper-works, which were not designed to play Bell and Tainter cylinders. The name Graphophone was used by Columbia (for disc machines) into the 1920s or 1930s, and the similar name Grafonola was used to denote internal horn machines.
The work of the Volta Associates laid the foundation for the successful use of dictating machines in business, because their wax recording process was practical and their machines were durable. But it would take several more years and the renewed efforts of Edison and the further improvements of Emile Berliner and many others, before the recording industry became a major factor in home entertainment.
See also 
- Columbia Graphophone Company, one of the earliest gramophone companies in the United Kingdom.
- Howe Machine Factory
- Volta Laboratory and Bureau
- Newville, Leslie J. Development Of The Phonograph At Alexander Graham Bell's Volta Laboratory, United States National Museum Bulletin, United States National Museum and the Museum of History and Technology, Washington, D.C., 1959, No. 218, Paper 5, pp.69-79. Retrieved from Gutenberg.org.
- Tainter, Charles Sumner. Recording Technology History: Charles Sumner Tainter Home Notes, History Department of, University of San Diego. Retrieved from University of San Diego History Department website December 19, 2009
- Library and Archives Canada. The Virtual Gramophone: Canadian Historical Sound Recordings: Early Sound Recording and the Invention of the Gramophone, Library and Archives Canada website, Ottawa, Updated 2006-06-29. Retrieved April 11, 2010.
- Newville, Leslie J. Development of the Phonograph at Alexander Graham Bell's Volta Laboratory, United States National Museum Bulletin, United States National Museum and the Museum of History and Technology, Washington, D.C., 1959, No. 218, Paper 5, pp.69-79. Retrieved from Gutenberg.org.
- Hoffmann, Frank W. & Ferstler, Howard. Encyclopedia of Recorded Sound: Volta Graphophone Company, CRC Press, 2005, Vol.1, pg.1167, ISBN 0-415-93835-X, ISBN 978-0-415-93835-8
- Scriptophily.com. American Graphophone Company - 1900, Scriptophily.com, Chantilly, Virginia. Retrieved 17 March 2010.
- Schoenherr, Steven. Recording Technology History: Charles Sumner Tainter and the Graphophone, History Department of, University of San Diego, revised July 6, 2005. Retrieved from University of San Diego History Department website December 19, 2009.
- Encyclopedia of World Biography. "Alexander Graham Bell", Encyclopedia of World Biography. Thomson Gale. 2004. Retrieved December 20, 2009 from Encyclopedia.com.
- This article incorporates text from the United States National Museum, a government publication in the public domain.
- Charles Tainter and the Graphophone
- Type K Electric Graphophone
- Identification guides for Columbia Graphophones: