1
Gary A Isakson, Curtis L Larson: Self-venting vapor-tight microwave oven package. Minnesota Mining and Manufacturing Company, Donald M Sell, James A Smith, William L Huebsch, February 3, 1987: US04640838 (121 worldwide citation)

A vapor-tight package has a deposit comprising nonmetallic, microwave-absorbing particles such as graphite dispersed in nonmetallic binder. When heated in a microwave oven, heat built up in the particles may soften and weaken the underlying packaging material, thus venting the package. When the depo ...


2
Curtis L Larson, John R Ward: System and device for inflating and sealing air inflated cushioning material. Minnesota Mining and Manufacturing Company, Alexander Sell Steldt & DeLaHunt, April 12, 1977: US04017351 (111 worldwide citation)

An improved system and a device for providing air inflated cushioning material which is filled and sealed at the site of its intended use, such as at a packaging line. Included is an elongate flexible layered strip material comprising two heat sealable films fused together in discrete areas to form ...


3
Robert P Arens, Russell D Birkholz, Dee Lynn Johnson, Theodore P Labuza, Curtis L Larson, David J Yarusso: Time-temperature integrating indicator device. Minnesota Mining and Manufacturing Company, Gary L Griswold, Walter N Kirn, James J Trussell, September 16, 1997: US05667303 (106 worldwide citation)

A selectively activated time-temperature integrating device for providing a visually observable indication of cumulative thermal exposure, in which a viscoelastic material migrates into a diffusely light-reflective porous matrix at a rate which varies with temperature to progressively change the lig ...


4
Curtis L Larson: Strip material used in forming air inflated cushioning material. Minnesota Mining and Manufacturing Company, Cruzan Alexander, Donald M Sell, William L Huebsch, June 20, 1978: US04096306 (106 worldwide citation)

An improved strip material which may be inflated and sealed at the site of its intended use to form cushioning material. The strip material comprises two heat sealable films which are fused together in discrete areas to form two rows of inflatable chambers along the strip and a passageway extending ...


5
Victoria S Stenkamp, Curtis L Larson, Pierre H LePere: Configured microwave susceptor. Minnesota Mining and Manufacturing Company, Gary L Griswold, Walter N Kirn, Peter L Olson, May 10, 1994: US05310977 (91 worldwide citation)

A microwave susceptor having projections such as linear ridges which define circulation channels such as linear grooves. The susceptor may include apertures at the ridge apexes and the groove nadirs for allowing food secretions such as grease and steam, to pass through the susceptor. A strut may be ...


6
Curtis L Larson: Method for forming air inflated cushioning material. Minnesota Mining and Manufacturing Company, Cruzan Alexander, Donald M Sell, William L Huebsch, September 25, 1979: US04169002 (70 worldwide citation)

An improved method for forming a strip material and subsequently inflating and sealing the strip material at the site of its intended use to form cushioning material. Two heat sealable films are fused together in discrete areas to form two rows of inflatable chambers along the strip and a passageway ...


7
Curtis L Larson, Pierre H LePere: Microwave food package and grease absorbent pad therefor. Minnesota Mining and Manufacturing Company, Gary L Griswold, Walter N Kirn, Leland D Schultz, August 20, 1991: US05041325 (56 worldwide citation)

A package of food containing a substantial amount of water and solidified grease that can be cooked within the package in a microwave oven. A pad adjacent the food comprises microwave radiation transparent generally hydrophobic liquid grease absorbing materials that are capable of holding the amount ...


8
Curtis L Larson: Tamper resistant closure. Minnesota Mining and Manufacturing Company, Donald M Sell, James A Smith, John C Barnes, March 18, 1986: US04576297 (50 worldwide citation)

A tamper-indicating container seal for use with sealed containers comprising a translucent cap, having a rupturable membrane placed in the cap which is adapted to seal to the container and means, such as a deposit of adhesive, are provided to bond a portion of the rupturable membrane to the cap.


9
G Marco Bommarito, Mieczyslaw H Mazurek, Raymond P Johnston, David J Yarusso, Curtis L Larson: Microstructured time dependent indicators. 3M Innovative Properties Company, May 25, 2004: US06741523 (45 worldwide citation)

The invention provides microstructured time dependent indicators including timers, time/temperature indicators, etc. The indicators are preferably highly accurate and easy to read. The invention also includes indicators which are game pieces, calendars, greeting cards, etc. The indicators function b ...


10
Jeffrey O Emslander, Curtis L Larson, Pierre H Lepere: Microwave absorbing composite. Minnesota Mining and Manufacturing Company, Donald M Sell, Walter N Kirn, David L Weinstein, October 9, 1990: US04962000 (43 worldwide citation)

Microwave absorbing composite comprising at least two zones of material capable of absorbing microwave energy, each set of said two zones being separated by one zone of material transparent to or transmissive of microwave energy. The microwave energy absorbing zones are selected such that the compos ...