Patents of Charles Goodyear

Charles Goodyear (1800-1860) Charles Goodyear is best known for a single patent, US 3633, Improvements in India-Rubber Fabrics Vulcanization of Rubber .  The story of Goodyear and his 1839 discovery of vulcanization, a method to increase the strength and resiliency of rubber, has been told in several well researched accounts. What has not been accomplished is a compilation of the complete patents of Goodyear. Although many books and articles discuss the patents of Charles Goodyear, up to this point there was no single comprehensive and accurate list of his patents including all the information needed to retrieve the original documents from the issuing patenting organizations.   Librarians of the Rubber Division, ACS and the University of Akron, using both print and online resources were able to compile a complete list of Goodyear’s patents issued in the 19th Century.

Origin Patent Number Issue Date Title/Description Patent File
United States 5536 Apr 25, 1848 Improvement in making hollow articles of india-rubber PDF
United States 3633 Nov 20, 1860 Improvement in the art of preparing caoutchouc
United States N/A Aug 11, 1832 Spoon manufacturing grant
United States 240 Jun 17, 1837 Improvement in the process of divesting caoutchouc, gum elastic, or india-rubber of its adhesive properties, and also bleaching the same, and thereby adapting it to various useful purposes PDF
United States N/A Feb 05, 1834 A molasses gate (a type of faucet)