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For the Inventor, By the Inventor

Chicago, IL, United States of America

Viskase Corporation


USPTO Granted Patents = 190

% Expired Patents = 0.53


Trademarks = 12

Forward Citations = 2,832

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103 inventors (with patents filed for the assignee):

goldMedal Stephen J Vicik (31 out of 46 patents)

silverMedal Stanley Lustig (28 out of 40 patents)

bronzeMedal Jeffrey M Schuetz (25 out of 28 patents)

4.  Myron D Nicholson (23 out of 41 patents)

5.  Jeffery A Oxley (17 out of 18 patents)

6.  Vytautas Kupcikevicius (13 out of 33 patents)

7.  Paul Edmund Ducharme, Jr (10 out of 10 patents)

8.  Darrel L Wilhoit (10 out of 13 patents)

9.  Edward Makoto Kajiwara (9 out of 11 patents)

10.  James R Hansen (8 out of 10 patents)

11.  Jerome J Rasmussen (8 out of 13 patents)

12.  Vytas A Raudys (7 out of 18 patents)

13.  Rama Ramagopal (7 out of 7 patents)

14.  Shiu-Chung Jon (6 out of 6 patents)

15.  Nancy M Mack (6 out of 6 patents)


Core Competencies:
Cellulose Casing
Food Packaging
Antimicrobial Composition
Heat Shrinkable Film
Biaxially Oriented Film
Multilayer Film
Fibrous Casing
Colorant Compositions
Extrusion Method
Shrinkable Bag
Thermoplastic Film
Packaging Solutions

190 patents:

1. 7001635 - Process for improving smoky color of an encased food product (2006-02-21),
2. 6630214 - Improving rewet shrink properties of casing (2003-10-07),
3. 6565796 - Method and apparatus for use in manufacture of cellulose casing (2003-05-20),
4. 6547999 - Cellulose food casing, cellulose composition and production method therefor (2003-04-15),
5. 6444161 - Mandrel structure for use in manufacture of cellulose food casing (2002-09-03),
6. 6319457 - Method for extruding tubular film (2001-11-20),
7. 6279737 - Food casing package and method of preparing (2001-08-28),
8. 6264874 - Method of controlling the diameter of a clear extruded tube (2001-07-24),
9. 6200510 - Method for the contact printing of cellulose food casings (2001-03-13),
10. 6183826 - Colored cellulosic casing with clear corridor (2001-02-06),
11. 6143344 - Bixin colorant compositions (2000-11-07),
12. 6132779 - Method for removing cellulosic casings from sausages (2000-10-17),
13. 6100357 - Heat shrinkable very low density polyethylene terpolymer film (2000-08-08),
14. 6096258 - Method and apparatus for forming a cellulose article including solvent (2000-08-01),
15. 6083581 - Cellulase resistant cellulose casing and process (2000-07-04),
Viskase is a global leader in the production of cellulose, fibrous, plastic and non-edible casings for the food industry. With over 90 years of experience, Viskase provides innovative solutions and high-quality products that enhance the taste, appearance, and quality of various food products. The company serves customers in over 100 countries, offering a wide range of casing options that meet the needs of different applications and processing methods. Viskase is committed to delivering superior packaging solutions to its customers, helping them optimize their food production processes and meet the demands of an ever-changing market.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Sep 22 2026

Viskase Corporation
190 Patents

#40 in Chicago, IL

#136 in Illinois

#2,161 in US

#4,424 in the World

Chicago, IL (US)
Chicago, IL, United States of America

Viskase Corporation

Forward Citations = 2,832

103 inventors:

goldMedal Stephen J Vicik (31 out of 46 patents)

silverMedal Stanley Lustig (28 out of 40 patents)

bronzeMedal Jeffrey M Schuetz (25 out of 28 patents)

4.  Myron D Nicholson (23 out of 41 patents)

5.  Jeffery A Oxley (17 out of 18 patents)

Please report any incorrect information to [email protected]
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