Langdon; William K.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Langdon; William K..The latest application filed is for "acetal group-containing non-ionic surfactants".

Company Profile

0.15.0

Langdon; William K. - Grosse Ile MI

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Acetal group-containing non-ionic surfactants Grant 4,519,950 - Langdon May 28, 1	1985-05-28
Method for purifying reaction products containing higher-alkyl glycosides Grant 4,510,306 - Langdon April 9, 1	1985-04-09
Non-ionic surfactants containing acetal groups Grant 4,408,084 - Langdon * October 4, 1	1983-10-04
Fiber lubricants yielding low residues upon oxidation Grant 4,314,000 - Thir , et al. February 2, 1	1982-02-02
Surfactants derived from the reaction product of polyoxyalkylene polyols and polyglycidyl ethers and glycol-based antifreeze using same Grant 4,287,078 - Langdon , et al. September 1, 1	1981-09-01
Polyalkylene polyamine ether derivatives of polyoxyalkylene compounds Grant 4,281,199 - Langdon July 28, 1	1981-07-28
Oxyalkylated polyglycerols and water-based lubricants prepared therefrom Grant 4,265,774 - Langdon May 5, 1	1981-05-05
Polyoxyalkylene polyamine detergent compositions Grant 4,261,704 - Langdon April 14, 1	1981-04-14
Process for preparing polyalkylene polyamine polyethers Grant 4,191,820 - Langdon March 4, 1	1980-03-04
Heteric/block polyoxyalkylene compounds as crude oil demulsifiers Grant 4,183,821 - Langdon , et al. January 15, 1	1980-01-15
Multi-block coupled polyoxyalkylene copolymer surfactants Grant 4,072,704 - Langdon February 7, 1	1978-02-07
Glycoside polyethers Grant 4,011,389 - Langdon March 8, 1	1977-03-08
Alkali stable polyoxyethylene acetal surfactants Grant 3,954,886 - Langdon May 4, 1	1976-05-04
Hydroxyalkylamino glycosides and process of preparation Grant 3,931,148 - Langdon January 6, 1	1976-01-06
Multi-block polyacetal copolymer surfactants Grant 3,931,337 - Langdon January 6, 1	1976-01-06

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