Patents by Inventor David L. Witkewitz

David L. Witkewitz 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: 7767243
    Abstract: A method of preparing a liquid flavoring composition includes combining menthol and at least one physiological cooling agent selected from the group consisting of N-substituted p-menthane carboxamides, acyclic carboxamides, menthyl succinate and combinations thereof. The menthol and the at least one physiological cooling agent are heated to form a liquid composition. The composition of the menthol and the at least one physiological cooling agent is cooled to about 25° C. while maintaining the composition in a liquid state to create the liquid flavoring composition.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: August 3, 2010
    Assignee: WH. Wrigley Jr. Company
    Inventors: David L. Witkewitz, Gordon N. McGrew
  • Publication number: 20080199565
    Abstract: A method for producing a chewing gum, as well as the chewing gum so produced, incorporates a physiological cooling agent, such as acyclic carboxamide, or combinations of physiological cooling agents. In another embodiment a combination of physiological cooling agents is made in a modified release structure. The modified release/cooling agents combination is preferably obtained by physically modifying the properties of the combination of cooling agents by coating and drying. When incorporated into gum, these particles are adapted to enhance the shelf stability of the flavor and/or produce a modified release when the gum is chewed. In another embodiment, the physiological cooling agent is present with menthol and menthone. In another embodiment, coated chewing gum has a coating that comprises a physiological cooling agent. The preferred inventive chewing gum provides a high flavor impact in which the harsh notes normally associated with such a high flavor impact have been reduced or eliminated.
    Type: Application
    Filed: April 29, 2008
    Publication date: August 21, 2008
    Inventors: Fred R. Wolf, Gordon N. McGrew, Jeffrey S. Hook, Lindell C. Richey, Mansukh M. Patel, Robert J. Yatka, David L. Witkewitz, Michael J. Greenberg, Henry T. Tyrpin, Kathryn T. Nelson
  • Patent number: 7115288
    Abstract: A method of making coated chewing gum products comprises the steps of providing chewing gum cores; providing a first coating syrup comprising a bulk sweetener; providing an aldehyde flavor; providing a second coating syrup separate from the first coating syrup and comprising a dipeptide sweetener; and applying the first and second coating syrups to the cores and drying the syrups to produce a coating on the cores. Calcium carbonate or another antacid may be incorporated in the coating by being mixed into the first coating syrup or applied as a dry charge.
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: October 3, 2006
    Assignee: Wm. Wrigley Jr. Company
    Inventors: David L. Witkewitz, David G. Barkalow, Jonathan J. Knutsen, Chungsea A. Shen, Julius W. Zuehlke, Robert J. Yatka
  • Patent number: 7078066
    Abstract: A method for producing a chewing gum, as well as the chewing gum so produced, incorporates a physiological cooling agent, such as acyclic carboxamide, or combinations of physiological cooling agents. In another embodiment a combination of physiological cooling agents is made in a modified release structure. The modified release/cooling agents combination is preferably obtained by physically modifying the properties of the combination of cooling agents by coating and drying. When incorporated into gum, these particles are adapted to enhance the shelf stability of the flavor and/or produce a modified release when the gum is chewed. In another embodiment, the physiological cooling agent is present with menthol and menthone. In another embodiment, coated chewing gum has a coating that comprises a physiological cooling agent.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: July 18, 2006
    Assignee: Wm. Wrigley Jr. Company
    Inventors: Fred R. Wolf, Gordon N. McGrew, Jeffrey S. Hook, Lindell C. Richey, Mansukh M. Patel, Robert J. Yatka, David L. Witkewitz, Michael J. Greenberg, Henry T. Tyrpin, Kathryn T. Nelson
  • Patent number: 6955827
    Abstract: A method for producing a chewing gum with a controlled release of an antimicrobial agent, as well as the chewing gum so produced, is obtained by physically modifying the release properties of the antimicrobial agent by coating and drying. The antimicrobial agent is coated by encapsulation, partially coated by agglomeration, entrapped by absorption, or treated by multiple steps of encapsulation, agglomeration, and absorption. The coated antimicrobial agent is preferably then co-dried and particle sized to produce a release-modified antimicrobial agent for use in chewing gum. When incorporated into the chewing gum, these particles are adapted to produce a fast release or a delayed release when the gum is chewed. The preferred antimicrobial agent is chlorhexidine digluconate.
    Type: Grant
    Filed: July 14, 2003
    Date of Patent: October 18, 2005
    Assignee: Wm. Wrigley Jr. Company
    Inventors: Roman M. Barabolak, Steven E. Zibell, David L. Witkewitz, Michael J. Greenberg
  • Patent number: 6949264
    Abstract: A method for producing a chewing gum with a controlled release active agent, as well as the chewing gum so produced, is obtained by physically modifying the release properties of the active agent, such as a nutraceutical or nutritional supplement, by coating and drying. The active agent is coated by encapsulation, partially coated by agglomeration, entrapped by absorption, or treated by multiple steps of encapsulation, agglomeration, and absorption. The coated active agent is preferably then co-dried and particle sized to produce a release-modified active agent for use in chewing gum. The active agent may also be used in a coating on a chewing gum product, as part of a rolling compound applied to the chewing gum product, or as a part of the liquid in a liquid-center chewing gum product.
    Type: Grant
    Filed: July 21, 2000
    Date of Patent: September 27, 2005
    Assignee: Wm. Wrigley Jr. Company
    Inventors: Gordon N. McGrew, David G. Barkalow, Sonya S. Johnson, David W. Record, Mansukh M. Patel, Jack D. Nimz, Steven E. Zibell, Robert J. Yatka, Michael J. Greenberg, Rebecca A. Aumann, Daniel J. Zyck, Daniel J. Sitler, Jeffrey S. Hook, James R. Maxwell, Michael A. Reed, Victor V. Gudas, Philip G. Schnell, Henry T. Tyrpin, Michael P. Russell, David L. Witkewitz, Joo H. Song, Donald J. Townsend, Donald A. Seielstad, Ronald L. Ream, Christine L. Corriveau, William J. Wokas, Thomas M. Tongue
  • Publication number: 20040247743
    Abstract: A method for producing a chewing gum, as well as the chewing gum so produced, incorporates a physiological cooling agent, such as acyclic carboxamide, or combinations of physiological cooling agents. In another embodiment a combination of physiological cooling agents is made in a modified release structure. The modified release/cooling agents combination is preferably obtained by physically modifying the properties of the combination of cooling agents by coating and drying. When incorporated into gum, these particles are adapted to enhance the shelf stability of the flavor and/or produce a modified release when the gum is chewed. In another embodiment, the physiological cooling agent is present with menthol and menthone.
    Type: Application
    Filed: September 30, 2003
    Publication date: December 9, 2004
    Applicant: Wm. Wrigley, Jr. Company
    Inventors: Fred R. Wolf, Gordon N. McGrew, Jeffrey S. Hook, Lindell C. Richey, Mansukh M. Patel, Robert J. Yatka, David L. Witkewitz, Michael J. Greenberg, Henry T. Tyrpin, Kathryn T. Nelson
  • Publication number: 20040185144
    Abstract: A method of making coated chewing gum products comprises the steps of providing chewing gum cores; providing a first coating syrup comprising a bulk sweetener; providing an aldehyde flavor; providing a second coating syrup separate from the first coating syrup and comprising a dipeptide sweetener; and applying the first and second coating syrups to the cores and drying the syrups to produce a coating on the cores. Calcium carbonate or another antacid may be incorporated in the coating by being mixed into the first coating syrup or applied as a dry charge.
    Type: Application
    Filed: June 3, 2003
    Publication date: September 23, 2004
    Inventors: David L. Witkewitz, David G. Barkalow, Jonathan J. Knutsen, Chungsea A. Shen, Julius W. Zuehlke, Robert J. Yatka
  • Publication number: 20040067277
    Abstract: A method for producing a chewing gum with a controlled release of an antimicrobial agent, as well as the chewing gum so produced, is obtained by physically modifying the release properties of the antimicrobial agent by coating and drying. The antimicrobial agent is coated by encapsulation, partially coated by agglomeration, entrapped by absorption, or treated by multiple steps of encapsulation, agglomeration, and absorption. The coated antimicrobial agent is preferably then co-dried and particle sized to produce a release-modified antimicrobial agent for use in chewing gum. When incorporated into the chewing gum, these particles are adapted to produce a fast release or a delayed release when the gum is chewed. The preferred antimicrobial agent is chlorhexidine digluconate.
    Type: Application
    Filed: July 14, 2003
    Publication date: April 8, 2004
    Applicant: Wm. Wrigley Jr. Company
    Inventors: Roman M. Barabolak, Steven E. Zibell, David L. Witkewitz, Michael J. Greenberg, Robert J. Yatka
  • Patent number: 6627233
    Abstract: A method for producing a chewing gum, as well as the chewing gum so produced, incorporates a physiological cooling agent, such as acyclic carboxamide, or combinations of physiological cooling agents. In another embodiment a combination of physiological cooling agents is made in a modified release structure. The modified release/cooling agents combination is preferably obtained by physically modifying the properties of the combination of cooling agents by coating and drying. When incorporated into gum, these particles are adapted to enhance the shelf stability of the flavor and/or produce a modified release when the gum is chewed. In other embodiments, the physiological cooling agent is present with menthol and menthone and coated chewing gum has a coating that comprises a physiological cooling agent.
    Type: Grant
    Filed: March 16, 2000
    Date of Patent: September 30, 2003
    Assignee: Wm. Wrigley Jr. Company
    Inventors: Fred R. Wolf, Gordon N. McGrew, Jeffrey S. Hook, Lindell C. Richey, David L. Witkewitz, Henry T. Tyrpin
  • Patent number: 6627234
    Abstract: A method for producing a chewing gum with an improved release of active agent, as well as the chewing gum so produced, is obtained by adding an active agent to a chewing gum coating. The active agent is added to the coating in a coating solution or premixed with a flavor or solvent. The coating solution may contain sweetener or other transdermal enhancing agents to obtain increased transmucosal absorption. An active agent may also be used in the gum core.
    Type: Grant
    Filed: July 21, 2000
    Date of Patent: September 30, 2003
    Assignee: Wm. Wrigley Jr. Company
    Inventors: Sonya S. Johnson, David W. Record, Michael J. Greenberg, Michael A. Reed, Victor V. Gudas, Philip G. Schnell, Donald A. Seielstad, Henry T. Tyrpin, Michael P. Russell, David L. Witkewitz, Joo H. Song, Donald J. Townsend, Robert J. Yatka, Ronald L. Ream, Christine L. Corriveau, William J. Wokas
  • Publication number: 20030180414
    Abstract: A method for producing a chewing gum with a controlled release of a bitterness inhibitor, as well as the chewing gum so produced, is obtained by physically modifying the release properties of the bitterness inhibitor by coating and drying. The bitterness inhibitor is coated by encapsulation, partially coated by agglomeration, entrapped by absorption, or treated by multiple steps of encapsulation, agglomeration, and absorption. The coated bitterness inhibitor is preferably then co-dried and particle sized to produce a release-modified bitterness inhibitor for use in chewing gum. When incorporated into the chewing gum, these particles are adapted to produce a fast release or a delayed release when the gum is chewed. The preferred bitterness inhibitor is sodium gluconate.
    Type: Application
    Filed: October 25, 2002
    Publication date: September 25, 2003
    Inventors: Victor V. Gudas, Michael A. Reed, Philip G. Schnell, Henry T. Tyrpin, David L. Witkewitz, Michael J. Greenberg, Fred R. Wolf
  • Patent number: 6592912
    Abstract: A method for producing a chewing gum with a controlled release of an antimicrobial agent, as well as the chewing gum so produced, is obtained by physically modifying the release properties of the antimicrobial agent by coating and drying. The antimicrobial agent is coated by encapsulation, partially coated by agglomeration, entrapped by absorption, or treated by multiple steps of encapsulation, agglomeration, and absorption. The coated antimicrobial agent is preferably then co-dried and particle sized to produce a release-modified antimicrobial agent for use in chewing gum. When incorporated into the chewing gum, these particles are adapted to produce a fast release or a delayed release when the gum is chewed. The preferred antimicrobial agent is chlorhexidine digluconate.
    Type: Grant
    Filed: June 22, 2000
    Date of Patent: July 15, 2003
    Assignee: Wm. Wrigley Jr. Company
    Inventors: Roman M. Barabolak, Steven E. Zibell, David L. Witkewitz, Michael J. Greenberg, Robert J. Yatka
  • Patent number: 6579545
    Abstract: A method of making coated chewing gum products containing an antigas agent comprises the steps of providing chewing gum cores; providing a coating comprising a bulk sweetener; providing an antigas agent; and applying the antigas agent and coating syrup to the cores and drying the syrup to produce a coating on the cores.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: June 17, 2003
    Assignee: WM. Wrigley Jr. Company
    Inventors: Daniel J. Zyck, Michael J. Greenberg, David G. Barkalow, Scott W. Marske, Philip G. Schnell, Philip Mazzone, John E. Hammond, David L. Witkewitz, Daniel J. Sitler, Raynold M. Petrocelli
  • Patent number: 6541048
    Abstract: A method of making coated chewing gum products containing an acid blocker comprises the steps of providing chewing gum cores; providing a coating syrup comprising a bulk sweetener, providing an acid blocker, applying the coating syrup and acid blocker to the cores and drying the syrup to produce a coating on the cores, the coating containing the acid blocker.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: April 1, 2003
    Assignee: WM. Wrigley Jr. Company
    Inventors: Daniel J. Zyck, Michael J. Greenberg, David G. Barkalow, Scott W. Marske, Philip G. Schnell, Philip Mazzone, David L. Witkewitz
  • Patent number: 6472000
    Abstract: A method for producing a chewing gum with a controlled release of a bitterness inhibitor, as well as the chewing gum so produced, is obtained by physically modifying the release properties of the bitterness inhibitor by coating and drying. The bitterness inhibitor is coated by encapsulation, partially coated by agglomeration, entrapped by absorption, or treated by multiple steps of encapsulation, agglomeration, and absorption. The coated bitterness inhibitor is preferably then co-dried and particle sized to produce a release-modified bitterness inhibitor for use in chewing gum. When incorporated into the chewing gum, these particles are adapted to produce a fast release or a delayed release when the gum is chewed. The preferred bitterness inhibitor is sodium gluconate.
    Type: Grant
    Filed: May 26, 1999
    Date of Patent: October 29, 2002
    Assignee: WM. Wrigley Jr. Co.
    Inventors: Victor V. Gudas, Michael A. Reed, Philip G. Schnell, Henry T. Tyrpin, David L. Witkewitz, Michael J. Greenberg, Fred R. Wolf
  • Patent number: 6444241
    Abstract: A method for producing a chewing gum with a controlled release of caffeine, as well as the chewing gum so produced, is obtained by physically modifying caffeine's properties by coating and drying. Caffeine is coated by encapsulation, partially coated by agglomeration, entrapped by absorption, or treated by multiple steps of encapsulation, agglomeration, and absorption. The coated caffeine is then preferably co-dried and particle sized to produce a release-modified caffeine for use in chewing gum. When incorporated into the chewing gum, these particles are adapted to produce a fast release or a delayed release when the gum is chewed. Also disclosed is a chewing gum pellet having a coating including caffeine or a caffeine salt compound.
    Type: Grant
    Filed: August 30, 2000
    Date of Patent: September 3, 2002
    Assignee: Wm. Wrigley Jr. Company
    Inventors: Henry T. Tyrpin, Michael P. Russell, David L. Witkewitz, Sonya S. Johnson, Ronald L. Ream, Christine L. Corriveau
  • Publication number: 20020119216
    Abstract: A method of making coated chewing gum products containing an antigas agent comprises the steps of providing chewing gum cores; providing a coating comprising a bulk sweetener; providing an antigas agent; and applying the antigas agent and coating syrup to the cores and drying the syrup to produce a coating on the cores.
    Type: Application
    Filed: December 22, 2000
    Publication date: August 29, 2002
    Inventors: Daniel J. Zyck, Michael J. Greenberg, David G. Barkalow, Scott W. Marske, Philip G. Schnell, Philip Mazzone, John E. Hammond, David L. Witkewitz, Daniel J. Sitler, Raynold M. Petrocelli
  • Publication number: 20010021373
    Abstract: A method of making coated chewing gum products containing an acid blocker comprises the steps of providing chewing gum cores; providing a coating syrup comprising a bulk sweetener, providing an acid blocker, applying the coating syrup and acid blocker to the cores and drying the syrup to produce a coating on the cores, the coating containing the acid blocker.
    Type: Application
    Filed: December 22, 2000
    Publication date: September 13, 2001
    Inventors: Daniel J. Zyck, Michael J. Greenberg, David G. Barkalow, Scott W. Marske, Philip G. Schnell, Philip Mazzone, David L. Witkewitz
  • Patent number: 6165516
    Abstract: A method for producing a chewing gum with a controlled release of caffeine, as well as the chewing gum so produced, is obtained by physically modifying caffeine's properties by coating and drying. Caffeine is coated by encapsulation, partially coated by agglomeration, entrapped by absorption, or treated by multiple steps of encapsulation, agglomeration, and absorption. The coated caffeine is then co-dried and particle sized to produce a release-modified caffeine. When incorporated into the chewing gum, these particles are adapted to produce a fast release or a delayed release when the gum is chewed.
    Type: Grant
    Filed: May 27, 1999
    Date of Patent: December 26, 2000
    Assignee: Wm. Wrigley Jr. Company
    Inventors: Victor V. Gudas, Michael A. Reed, Philip G. Schnell, Henry T. Tyrpin, Michael P. Russell, David L. Witkewitz