Richard Keefer

Person

Peterborough, CA

People

Patents Grantslast 30 patents

Information Patent Grant
Microwave packaging structures
- Patent number 5,910,268
- Issue date Jun 8, 1999
- Richard M. Keefer
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Smart microwave packaging structures
- Patent number 5,864,123
- Issue date Jan 26, 1999
- Richard M. Keefer
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Methods and devices used in the microwave heating of foods and othe...
- Patent number 5,519,195
- Issue date May 21, 1996
- Beckett Technologies Corp.
- Richard M. Keefer
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Susceptors for microwave heating and systems and methods of use
- Patent number 5,079,397
- Issue date Jan 7, 1992
- Alcan International Limited
- Richard M. Keefer
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Improved uniformity of microwave heating by control of the depth of...
- Patent number 4,990,735
- Issue date Feb 5, 1991
- Alcan International Limited
- Claude P. Lorenson
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Microwave container and method of making same
- Patent number 4,866,234
- Issue date Sep 12, 1989
- Alcan International Limited
- Richard M. Keefer
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Package of material for microwave heating including container with...
- Patent number 4,831,224
- Issue date May 16, 1989
- Alcan International Limited
- Richard M. Keefer
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Container for microwave heating including means for modifying micro...
- Patent number 4,814,568
- Issue date Mar 21, 1989
- Alcan International Limited
- Richard M. Keefer
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Systems and methods for determining doneness of microwave-heated bo...
- Patent number 4,786,773
- Issue date Nov 22, 1988
- Alcan International Limited
- Richard M. Keefer
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Microwave heating package and method
- Patent number 4,656,325
- Issue date Apr 7, 1987
- Richard M. Keefer
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL

Richard Keefer

Person

Patents Grantslast 30 patents

Microwave packaging structures

Smart microwave packaging structures

Methods and devices used in the microwave heating of foods and othe...

Susceptors for microwave heating and systems and methods of use

Improved uniformity of microwave heating by control of the depth of...

Microwave container and method of making same

Package of material for microwave heating including container with...

Container for microwave heating including means for modifying micro...

Systems and methods for determining doneness of microwave-heated bo...

Microwave heating package and method