Patents by Inventor John W. Dittrick

John W. Dittrick 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).

Novel norbornyl-substituted pyrans, method for their synthesis and use thereof in perfumery

Patent number: 4276220

Abstract: Norbornyl-substituted pyrans, their preparation and their use as olfactory components of perfume formulations are disclosed.

Type: Grant

Filed: February 22, 1980

Date of Patent: June 30, 1981

Assignee: Fritzsche Dodge & Olcott, Inc.

Inventors: Brian J. Willis, John W. Dittrick
Novel norcamphanyl-substituted pyrans, method for their synthesis and use thereof in perfumery

Patent number: 4271046

Abstract: Norcamphanyl-substituted pyrans, their preparation and their use as olfactory components of perfume formulations are disclosed.

Type: Grant

Filed: September 13, 1979

Date of Patent: June 2, 1981

Assignee: Fritzsche Dodge & Olcott, Inc.

Inventors: Brian J. Willis, John W. Dittrick
Norbornyl-substituted pyran perfumes

Patent number: 4221679

Abstract: Norbornyl-substituted pyrans, their preparation and their use as olfactory components of perfume formulations are disclosed.

Type: Grant

Filed: July 25, 1979

Date of Patent: September 9, 1980

Assignee: Fritzsche Dodge & Olcott, Inc.

Inventors: Brian J. Willis, John W. Dittrick
Novel norcamphanyl-substituted pyrans, method for their synthesis and use thereof in perfumery

Patent number: 4197246

Abstract: Norcamphanyl-substituted pyrans, their preparation and their use as olfactory components of perfume formulations are disclosed.

Type: Grant

Filed: October 12, 1978

Date of Patent: April 8, 1980

Assignee: Fritzsche Dodge & Olcott, Inc.

Inventors: Brian J. Willis, John W. Dittrick

Novel norbornyl-substituted pyrans, method for their synthesis and use thereof in perfumery

Novel norcamphanyl-substituted pyrans, method for their synthesis and use thereof in perfumery

Norbornyl-substituted pyran perfumes

Novel norcamphanyl-substituted pyrans, method for their synthesis and use thereof in perfumery