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For the Inventor, By the Inventor

Alexandria, MN, United States of America

Douglas Machine Inc.


USPTO Granted Patents = 50



Trademarks = 20

Forward Citations = 453

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86 inventors (with patents filed for the assignee):

goldMedal Irvan Leo Pazdernik (16 out of 30 patents)

silverMedal Richard Jerome Schoeneck (13 out of 21 patents)

bronzeMedal Paul Howard Wagner (12 out of 25 patents)

4.  Richard Willard Lukanen, Jr (11 out of 11 patents)

5.  Ronald Matthew Gust (10 out of 11 patents)

6.  Daniel Leonard Floding (9 out of 9 patents)

7.  Aaron M Frederick (8 out of 8 patents)

8.  Thomas Harold Peterman (8 out of 8 patents)

9.  Christopher Todd Davis (6 out of 8 patents)

10.  Matthew D Toyli (5 out of 5 patents)

11.  Bruce Peterson (5 out of 9 patents)

12.  David Leon Anderson (5 out of 9 patents)

13.  Frank Mathew Brenkus (4 out of 12 patents)

14.  Patrick Joseph Bierschenk (3 out of 28 patents)

15.  Matthew R Crissinger (3 out of 3 patents)


Core Competencies:
Robotic Case Packer
Article Accumulation
Flexible Jaws
Auto Film Splicing
Shrink-Wrap Packaging
Carton Stacking
Heat Tunnel
Retractable Transfer Device
Product Metering
Case Erector
Packaging Automation
Retail Ready Package

50 patents:

1. 12384579 - System and process for forming retained container groups from arrayed container groups (2025-08-12),
2. 11905052 - System and process for forming retained container groups from arrayed container groups (2024-02-20),
3. 11505341 - Robotic case packer platform and packing method (2022-11-22),
4. 11383863 - Robotic article handling system and operations (2022-07-12),
5. 11292624 - End of arm tool for loaded case closure (2022-04-05),
6. 11072141 - Robotic case erector (2021-07-27),
7. 10889452 - Article accumulation and article group formation (2021-01-12),
8. 10759556 - Flexible jaws for vertical fill form and seal apparatus and methods of use (2020-09-01),
9. 10759550 - Intermittent case packer assembly and methods (2020-09-01),
10. 10611589 - Auto film splicing assembly with film roll positioner (2020-04-07),
11. 10549924 - Robotic article collation and metering assembly (2020-02-04),
12. 10549923 - Article accumulation pattern building load plate (2020-02-04),
13. 10351355 - Auto changeover infeed assembly (2019-07-16),
14. 9902517 - Apparatus and method for a structurally resilient package (2018-02-27),
15. 9840346 - Method and apparatus for making a structurally resilient package (2017-12-12),
Douglas Machine Inc. is a leading manufacturer of packaging automation and secondary packaging equipment. With over 50 years of experience, Douglas Machine designs and manufactures a wide range of packaging solutions including case and tray packers, shrink wrappers, cartoners, palletizers, and robotic packaging systems. Serving a variety of industries such as food and beverage, pharmaceutical, personal care, and more, Douglas Machine is known for their innovative and reliable packaging solutions.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 2 2025

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50 Patents

#1 in Alexandria, MN

#193 in Minnesota

#6,762 in US

#13,566 in the World

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Alexandria, MN, United States of America

Douglas Machine Inc.

Forward Citations = 453

86 inventors:

goldMedal Irvan Leo Pazdernik (16 out of 30 patents)

silverMedal Richard Jerome Schoeneck (13 out of 21 patents)

bronzeMedal Paul Howard Wagner (12 out of 25 patents)

4.  Richard Willard Lukanen, Jr (11 out of 11 patents)

5.  Ronald Matthew Gust (10 out of 11 patents)

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