1
Fritz Wittwer, Ivan Tomka: Polymer composition for injection molding. Warner Lambert Company, Howard Olevsky, Stephen Raines, June 16, 1987: US04673438 (181 worldwide citation)

Capsules and other shaped products formed from a moldable starch composition in an injection molding device is disclosed in the present invention. The composition comprising starch having a molecular mass range of 10,000 to 20,000,000 Dalton, and a water content range from 5 to 30% by weight. The st ...


2
Fritz Wittwer, Ivan Tomka, Hans Ulrich Bodenmann, Thomas Raible, Louis S Gillow: Method for forming pharmaceutical capsules from hydrophilic polymers. Warner Lambert Company, Howard Olevsky, Stephen Raines, April 19, 1988: US04738817 (101 worldwide citation)

Novel injection molded pharmaceutical capsules of gelatin having a cap member, a body member, means to form a plurality of compartments therein, and means for locking the cap and body members together to form a tamper-resistant connection.


3
Fritz Wittwer, Ivan Tomka: Starch based formulations. Warner Lambert Company, Fitzpatrick Cella Harper & Scinto, June 27, 1995: US05427614 (68 worldwide citation)

Starch based formulations for processing under applied pressure which are particulate and free-flowing at room temperatures, characterized in that it contains:


4
Fritz Wittwer, Ivan Tomka, Hans Ulrich Bodenmann, Thomas Raible, Louis S Gillow: Method for forming pharmaceutical capsules from starch compositions. Warner Lambert Company, Howard Olevsky, Stephen Raines, April 19, 1988: US04738724 (68 worldwide citation)

Novel injection molded pharmaceutical capsules of starch having a cap member, a body member, means to form a plurality of compartments therein; and means for locking the cap and body members together to form a tamper-resistant connection.


5
Fritz Wittwer, Ivan Tomka: Hydrophilic polymer compositions for injection molding. Warner Lambert Company, Howard Olevsky, Stephen Raines, April 7, 1987: US04655840 (67 worldwide citation)

A moldable hydrophilic polymer composition, preferably gelatin, for use in an injection molding device preferably controlled with a microprocessor. The composition has a molecular mass range of 10,000 to 2,000,000 Dalton or a molecular mass range of 10,000 to 2,000,000 and 10,000,000 to 20,000,000 D ...


6
Fritz Wittwer, Ivan Tomka: Method of conditioning a water swellable hydrocolloid. Warner Lambert Company, Louis S Gillow, November 13, 1984: US04482386 (57 worldwide citation)

Method to condition water-swellable hydrocolloids for use in mechanical forming processes such as die molding or injection molding. To avoid long conditioning times at high temperature, the hydrocolloids are conditioned to the predetermined water content at ambient temperature and then rapidly heate ...


7
Fritz Wittwer: Method for sealing non-enteric capsules. Warner Lambert Company, Louis S Gillow, October 23, 1984: US04478658 (43 worldwide citation)

A method is disclosed for sealing edible capsules comprised of telescopically engaged tubular capsule halves that define a junction seam between them. The method comprises adhesively applying against at least a portion of the seam a frangible, edible label adapted to cover the seam at the point of i ...


8
Ivan Tomka, Fritz Wittwer: Method for molding capsules. Warner Lambert Company, Pennie & Edmonds, May 27, 1986: US04591475 (31 worldwide citation)

A method of producing capsules of a moldable hydrophilic polymer composition, preferably gelatin, using a combination of an injection molding device with a microprocessor to precisely control the conditions of time, temperature, pressure and water content of the hydrophilic polymer composition, in a ...


9
Fritz Wittwer, Ivan Tomka: Molded hydrophilic polymer. Warner Lambert Company, Howard Olevsky, December 13, 1988: US04790881 (30 worldwide citation)

A moldable non gelatin containing hydrophilic polymer composition containing between 5 and 25% water.


10
Fritz Wittwer, Thomas Raible: Closing of filled capsules. Warner Lambert Company, Alan H Spencer, S Raines, March 18, 1986: US04576284 (27 worldwide citation)

A hard shell capsule for the exact dosage of substances, especially for pharmaceutical use, having a body part and a cap part which is joinable with said body. The body part has a side wall, a closed end and an open end. The cap part is die-molded or extruded as a stopper directly into the open end ...