DW

David L. Witkewitz

WJ Wm. Wrigley Jr.: 17 patents #23 of 442Top 6%
📍 Bridgeview, IL: #5 of 78 inventorsTop 7%
🗺 Illinois: #4,396 of 84,256 inventorsTop 6%
Overall (All Time): #259,086 of 4,157,543Top 7%
18
Patents All Time

Issued Patents All Time

Showing 1–18 of 18 patents

Patent #TitleCo-InventorsDate
7767243 Combinations of cooling agents for use in confections Gordon N. McGrew 2010-08-03
7115288 Method for making coated chewing gum products with a coating including an aldehyde flavor and a dipeptide sweetener David G. Barkalow, Jonathan J. Knutsen, Chungsea Shen, Julius W. Zuehlke, Robert J. Yatka 2006-10-03
7078066 Chewing gum containing physiological cooling agents and method of making Fred R. Wolf, Gordon N. McGrew, Jeffrey S. Hook, Lindell C. Richey, Mansukh M. Patel +4 more 2006-07-18
6955827 Method of controlling release of antimicrobial agents in chewing gum Roman M. Barabolak, Steven E. Zibell, Michael J. Greenberg 2005-10-18
6949264 Nutraceuticals or nutritional supplements and method of making Gordon N. McGrew, David G. Barkalow, Sonya S. Johnson, David W. Record, Mansukh M. Patel +21 more 2005-09-27
6627234 Method of producing active agent coated chewing gum products Sonya S. Johnson, David W. Record, Michael J. Greenberg, Michael A. Reed, Victor V. Gudas +10 more 2003-09-30
6627233 Chewing gum containing physiological cooling agents Fred R. Wolf, Gordon N. McGrew, Jeffrey S. Hook, Lindell C. Richey, Henry T. Tyrpin 2003-09-30
6592912 Method of controlling release of antimicrobial agents from chewing gum and gum produced thereby Roman M. Barabolak, Steven E. Zibell, Michael J. Greenberg, Robert J. Yatka 2003-07-15
6579545 Coated chewing gum products containing an antigas agent Daniel J. Zyck, Michael J. Greenberg, David G. Barkalow, Scott W. Marske, Philip G. Schnell +4 more 2003-06-17
6541048 Coated chewing gum products containing an acid blocker and process of preparing Daniel J. Zyck, Michael J. Greenberg, David G. Barkalow, Scott W. Marske, Philip G. Schnell +1 more 2003-04-01
6472000 Method of controlling release of bitterness inhibitors in chewing gum and gum produced thereby Victor V. Gudas, Michael A. Reed, Philip G. Schnell, Henry T. Tyrpin, Michael J. Greenberg +1 more 2002-10-29
6444241 Caffeine coated chewing gum product and process of making Henry T. Tyrpin, Michael P. Russell, Sonya S. Johnson, Ronald L. Ream, Christine L. Corriveau 2002-09-03
6165516 Method of controlling release of caffeine in chewing gum Victor V. Gudas, Michael A. Reed, Philip G. Schnell, Henry T. Tyrpin, Michael P. Russell 2000-12-26
5637334 Chewing gum containing maltitol Robert J. Yatka, Lindell C. Richey, Marc A. Meyers 1997-06-10
5158790 L-carvone enhanced fruit flavored chewing gum Lindell C. Richey, Sharon Thomas 1992-10-27
5087458 Solubilized oleoresin black pepper, method of making same, and method of adding same to chewing gum Mansukh M. Patel 1992-02-11
5075118 Method for making sugarless xylitol containing chewing gum Mario N. DiFalco, Jr. 1991-12-24
4988518 Chewing gum with liquid flavor added to the rolling compound and method Mansukh M. Patel, Vasek J. Kures 1991-01-29