Patents by Inventor Eric L. Nelson

Eric L. Nelson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4581374
    Abstract: A method for sterilizing contact lenses and especially hydrophilic (soft) contact lenses comprising contacting a contact lens for a period of time sufficient to sterilize the lens with a substantially isotonic, aqueous composition having a pH between 6-9 comprising about 0.01 to about 0.3 percent by weight of an ene-diol compound and from about 0.1 to about 25 ppm copper ion. Preferred ene-diol compounds are dihydroxyfumaric acid and dihydroxymaleic acid.
    Type: Grant
    Filed: October 12, 1984
    Date of Patent: April 8, 1986
    Assignee: Nelson Research & Development Co.
    Inventors: Eric L. Nelson, Richard L. Harris
  • Patent number: 4581379
    Abstract: A method for sterilizing contact lenses and especially hydrophilic (soft) contact lenses comprising contacting a contact lens for a period of time sufficient to sterilize the lens with a substantially isotonic, aqueous composition having a pH between 6-9 comprising about 0.01 to about 0.3 percent by weight of an ene-diol compound such as reductic acid and from about 0.1 to about 25 ppm copper ion.
    Type: Grant
    Filed: October 12, 1984
    Date of Patent: April 8, 1986
    Assignee: Nelson Research & Development Co.
    Inventors: Eric L. Nelson, Richard L. Harris
  • Patent number: 4490389
    Abstract: A method for sterilizing contact lenses and especially hydrophilic (soft) contact lenses comprising contacting a contact lens for a period of time sufficient to sterilize the lens with a substantially isotonic, aqueous composition having a pH between about 6-9 comprising about 0.01 to about 0.3 percent by weight of an ene-diol compound and from about 0.1 to about 25 ppm copper ion. Preferred ene-diol compounds are ascorbic acid and dihydroxymaleic acid.
    Type: Grant
    Filed: June 13, 1983
    Date of Patent: December 25, 1984
    Assignee: Nelson Research & Development Co.
    Inventors: Eric L. Nelson, Richard L. Harris
  • Patent number: 4446140
    Abstract: A method for treating mouth pain by administering to a human having such pain an effective mouth pain reducing amount of dextromethorphan, preferably as the hydrobromide.
    Type: Grant
    Filed: March 29, 1982
    Date of Patent: May 1, 1984
    Assignee: Nelson Research & Development Company
    Inventor: Eric L. Nelson
  • Patent number: 4323558
    Abstract: Pharmaceutical compositions containing triethylenetetramine (trien) useful in treating skin disorders. Trien may be used alone to treat inflammation of the skin or may be combined with additional anti-inflammatory, anti-infective or antimitotic agents in the treatment of skin disorders such as acne, psoriasis, seborrhea and dermatitis. Trien also forms a clear solution or gel with zinc pyrithione.
    Type: Grant
    Filed: August 7, 1980
    Date of Patent: April 6, 1982
    Assignee: Nelson Research & Development Co.
    Inventor: Eric L. Nelson
  • Patent number: 4316888
    Abstract: A method for temporarily reducing pain in animals including humans, and especially pain associated with gastrointestinal dysfunction, by administering to an animal having pain an effective, pain reducing amount of dextromethorphan, preferably as the hydrobromide.
    Type: Grant
    Filed: April 15, 1980
    Date of Patent: February 23, 1982
    Assignee: Nelson Research & Development Co.
    Inventor: Eric L. Nelson
  • Patent number: 4311481
    Abstract: There is disclosed a method of improvement of dyeing fibers by utilizing in the dyeing process, an effective, dye-enhancing amount of a textile auxiliary having the structural formula ##STR1## wherein R' is H or a lower alkyl group having 1-4 carbon atoms, n is O or a positive integer from 1-11 and R is an alkyl group (straight or branch chain) having 1-18 carbon atoms or aryl group, e.g., phenyl. The compounds disclosed herein enhance dye penetration of fibers and allow the dyeing process to take place at lower temperatures in less time.
    Type: Grant
    Filed: January 23, 1981
    Date of Patent: January 19, 1982
    Assignee: Nelson Research & Development Company
    Inventor: Eric L. Nelson
  • Patent number: 4310525
    Abstract: There is disclosed a method of treatment of inflammation in humans and animals comprising contacting the inflamed area with an effective, anti-inflammatory amount of 1-dodecylazacycloheptan-2-one.
    Type: Grant
    Filed: January 23, 1981
    Date of Patent: January 12, 1982
    Assignee: Nelson Research & Development Company
    Inventor: Eric L. Nelson
  • Patent number: 4148878
    Abstract: A process for inhibiting platelet aggregation or thrombus formation by the addition of a member selected from the group consisting of a compound of the formula: ##STR1## WHEREIN X is an alkyl or alkenyl chain having 2-8 carbon atoms, one of which carbon atoms may be in the form of a carbonyl group, Y is H, alkyl, dialkylaminoethyl, aryl, aralkyl or aryl and aralkyl substituted with one or more R, and R is H, lower alkyl, lower alkoxy, halogen, CF.sub.3, NO.sub.2, OH, CN, COOR.sub.1, ##STR2## NHCOR.sub.1, NR.sub.1 R.sub.2 or ##STR3## where R.sub.1 and R.sub.2 are each selected from the group consisting of H and lower alkyl; R, R.sub.1 and R.sub.2 being the same or different and n is 0-5; and pharmaceutically acceptable salts thereof, to in vivo and in vitro platelet systems.
    Type: Grant
    Filed: December 23, 1977
    Date of Patent: April 10, 1979
    Assignee: Nelson Research & Development Company
    Inventor: Eric L. Nelson
  • Patent number: 4148879
    Abstract: A process for inhibiting platelet aggregation or thrombus formation by the addition of a member selected from the group consisting of a compound of the formula: ##STR1## WHEREIN X is an alkyl or alkenyl chain having 2-8 carbon atoms, one of which carbon atoms may be in the form of a carbonyl group, Y is H, alkyl, dialkylaminoethyl, aryl, aralkyl or aryl and aralkyl substituted with one or more R, and R is H, lower alkyl, lower alkoxy, halogen, CF.sub.3, NO.sub.2, OH, CN, COOR.sub.1, ##STR2## NHCOR.sub.1, NR.sub.1 R.sub.2 or ##STR3## where R.sub.1 and R.sub.2 are each selected from the group consisting of H and lower alkyl; R, R.sub.1 and R.sub.2 being the same or different, T is selected from the group consisting of O, NH, S and CH.sub.2 with the proviso that only one T is O, Z is 0 or 1 and n is 0-5; and pharmaceutically acceptable salts thereof, to in vivo and in vitro platelet systems.
    Type: Grant
    Filed: December 23, 1977
    Date of Patent: April 10, 1979
    Assignee: Nelson Research & Development Company
    Inventor: Eric L. Nelson