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Thomas Ewing III

1862 – 1942

Commissioner of the US Patent Office

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About Thomas Ewing III

Lived 1862 – 1942 (aged 80). Thomas Ewing III was an American.

Thomas Ewing III (21 May 1862, Leavenworth, Kansas, USA – 7 December 1942, Yonkers, New York) was the 33rd Commissioner of the U.S. Patent Office, serving between 1913 and 1917. He was the son of General Thomas Ewing Jr. and the grandson of Secretary Thomas Ewing, Sr.

Background Thomas was born during the Civil War, on 21 May 1862, at Leavenworth, Kansas, the second son of Thomas Ewing, Jr. (1829–1896) and his wife Ellen Ewing Cox (1833–1919). At that time, his father, Thomas Ewing, Jr., was the Chief Justice of the Supreme Court of Kansas but he resigned his position to recruit an Army infantry regiment and to fight for the Union. His son was known as Thomas Ewing, Jr. until his father died and then he graduated to Thomas Ewing, Sr. But he was actually the fifth Thomas Ewing of his line. His great-great-great grandfather was the first Thomas Ewing, who came to America from Derry, Ireland, in 1718. On his mother's side, the fifth Thomas was the great grandson of a War of 1812 general and U.S. Congressman, Reasin Beall of Wooster, Ohio. Ewing grew up in Washington, D.C. (1865–1870), and Lancaster, Ohio (1870–1879), while his father worked as a lawyer and a U.S. Congressman.

Education A graduate of public schools in Lancaster, Ohio, Thomas went to the College of Wooster for two years, from 1879 to 1881, and transferred to Columbia College of New York, where he would remain for seven years, until 1888. In these seven years, he graduated with a Bachelor of Arts degree in 1883 and a Master of Arts in 1886, worked as a tutor of physics for the School of Mines from 1885 to 1888, and went to the School of Law in his last year. Then he transferred again, this time to Georgetown University in Washington, D.C. In 1890, he graduated with a Bachelor of Laws from there. By then, he had gained memberships in the Sigma Chi fraternity and, in 1885, Phi Beta Kappa society. He was later awarded an honorary Doctorate of Laws in 1914 by Georgetown University.

Career While he was attending classes at Georgetown, Thomas also worked as an assistant examiner at the U.S. Patent Office, from October 1888 to October 1890, but, in 1891, he moved to New York City and became a patent attorney. For the next five years, he and his father, also a patent attorney, shared their law offices as Ewing & Ewing in Manhattan and their home in Yonkers, New York. But they had law partners. One of them was the General's son and Thomas's brother, Hampton Denman Ewing, Sr. After his father was struck and killed by a cable car in 1896, Thomas continued to practice law, this time with Hampton. Thomas made his name as the counsel for Frank J. Sprague on the multiple-unit control of electric train operations and for Professor Michael I. Pupin on long-distance telephony. When he was returned to the U.S. Patent Office as the 33rd Commissioner in 1913, he was the President of the Current Literature Publishing Company and on the Board of Directors of the Crocker-Wheeler Company of Ampere, New Jersey. When he began, he kept the tradition of market monopoly on the control of patents by declaring that "a man had the right to say what the resale price of his patent should be". A strong supporter of patent reform, he worked for ways of streamlining and expediting patent operations. He often complained about the case backlogs, cramped offices and low salaries of the examiners and other members of the U.S. Patent Office. He tried to get a reform bill through the Congress in 1915 but it failed. He still ran into more problems when World War I began. Many of the workers left the Patent Corps to go "Over There" to France with the Army and Navy Corps. The war also complicated the conditions for the patent applications on both sides of the Atlantic Ocean, forcing Ewing to declare that the United States would not take over the patents from the citizens of enemy nations. But he drew criticism, and this situation would not be resolved until 1921, when the Nolan Bill was passed by the Congress. Before he was appointed as the Commissioner, he had been the first Chairman of the Legal Committee for a year since 1911, when it was established by the NAACP.

When Thomas resigned in 1917, he was appointed as the Chairman of the Munitions Board of the War and Navy Departments for the rest of World War I. This board encouraged the munitions and aircraft industries to pool their patents to help the technological development for the war effort. and he would continue until 1932. He later served as the President of the American Group of the International Association for the Protection of Industrial Property, and of the American Patent Law Association in 1931. ), and the New York Juvenile Asylum (now Children's Village). Thomas IV, William Francis Cochran, Sherman, Ellen Cox, Gifford Cochran, and Bayard. The family home was "Kinross", an estate at 616 Palisade Avenue in Yonkers. Their home was named the Slidell House after its previous resident, Senator John Slidell of Louisiana. It was once the home of Daniel S. Lamont, the Secretary of War for the second Cleveland Administration. It was also "just across the next block" from the Blair House – the former residence of Thomas's grandfather, Thomas Ewing, Sr.

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Important facts

Birth century
Nationality
Education
Georgetown University Law Center, Columbia University, Georgetown University
Also known as
Thomas Ewing, Thomas Ewing Jr.

Family & relationships

Parent
Thomas Ewing Jr.

People in Thomas Ewing III's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Thomas Ewing III's

Frequently asked questions

Who was Thomas Ewing III?

Commissioner of the US Patent Office (1862–1942)

When was Thomas Ewing III born?

Thomas Ewing III was born on 21 May 1862 in Leavenworth.

When did Thomas Ewing III die?

Thomas Ewing III died on 7 December 1942 in Yonkers.

What nationality was Thomas Ewing III?

Thomas Ewing III was American.

Sources & further reading

· Wikipedia: Thomas Ewing III

· Wikidata: Q7789409

· DBpedia: Thomas Ewing III

Cite this page

APA: Biography.guide. (2026). Thomas Ewing III. https://biography.guide/thomas-ewing-iii/

MLA: "Thomas Ewing III." Biography.guide, https://biography.guide/thomas-ewing-iii/.

Chicago: "Thomas Ewing III." Biography.guide. https://biography.guide/thomas-ewing-iii/.

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