E.I. du Pont de Nemours & Company is a chemical company commonly known as the DuPont Company. DuPont introduced its first reverse osmosis permeators for water desalination in 1969 under the trade name "Permasep" as a result of its contusion research in polymer chemistry and synthetic fibers. This collection documents the marketing and patenting efforts of DuPont on behalf of their Permasep® product line.

Joseph Bancroft & Sons Company manufactured, bleached, dyed, and finished a variety cotton-made goods. In July of 1958, The Spunize Company of America filed a lawsuit against one of Bancroft's licensees, the Duplan Corporation. The Spunize Company alleged that Duplan Corp. had committed patent infringement of a yarn crimping process that Duplan licensed from Bancroft. This collection consists of photographs and motion picture film depicting the yarn crimping process and the crimped yarn. A majority of the materials were created with the intention of being submitted as evidence in the court case.

The Lukens Steel Company was a medium-sized, non-integrated steel company and one of the top three producers of steel plates in the United States. Lukens operated continuously at its Coatesville, Pennsylvania, site since 1810 and was one of the few successful survivors of the many nineteenth-century iron works that once dotted southeastern Pennsylvania. This collection of Lukens Steel Company records consists of corporate records, mostly from the Secretary's Office. The records are comprised of seven series: Shareholders' meeting agendas; Stockholder lists; Proxies for annual meetings; Board and committee meeting agendas; Financial statements; Secretary's correspondence; and Counsel's correspondence.

Nora C. Edwards (1869-1962) was the manager and inventor for the Edwards Skirt Supporter Company, established around 1903 in Spooner, Wisconsin. Her papers are both personal and business and consist of letters she received from family members, agents, friends, and patent attorneys.

Paul W. Morgan (1911-1992) was a research chemist who spent his thirty-five-year career working in the DuPont Company's Pioneering Research Laboratory, part of the Textile Fibers Department (formerly the Rayon Department). His contributions include interfacial polycondensation reactions, a previously unexplored field of polymer chemistry. Morgan’s polymer condensation research ultimately yielded several commercially successful products. Among these were Nomex®, a high-temperature-resistant, thermally stable aramid fiber; Fiber B, a new tire reinforcing fiber that was twice as strong as ordinary synthetic tire yarns; and PRD-49, a high-modulus organic fiber marketed as Kevlar® aramid fiber. In addition to documenting Morgan’s career with DuPont, this collection also contains materials relating to the history of hand tools and tool manufacturers, amassed by Morgan following his retirement.

Royal Earl House (1814-1895) was an American inventor who patented an electic telegraph that could print Roman character letters and an electro-phonetic receiver for use in telegraphy. The collection is comprised of twenty-nine letters to House regarding his suit against the Bell monopoly for the phonetic telegraph, from 1885 to 1891.

The Singer Manufacturing Company, once the world's leading producer of sewing machines, was incorporated in 1863 as the successor to I.M. Singer & Co., established in 1851. The records are mostly different drafts of internal reports created for the use of company officers explaining the progress of various patent and trademark suits brought against the company in both the United States and Europe.