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For the Inventor, By the Inventor

Seattle, WA, United States of America

Chef'n Corporation


USPTO Granted Patents = 195

% Expired Patents = 8.7



Trademarks = 18

Forward Citations = 1,907

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23 inventors (with patents filed for the assignee):

goldMedal David A Holcomb (101 out of 114 patents)

silverMedal Adam A Jossem (52 out of 72 patents)

bronzeMedal Matthew Krus (44 out of 61 patents)

4.  Jonah S Griffith (33 out of 44 patents)

5.  Joshua R Stewart (31 out of 46 patents)

6.  David Hull (25 out of 44 patents)

7.  Jason O Germany (22 out of 22 patents)

8.  Peter A Ryding (9 out of 9 patents)

9.  John R Prins (7 out of 7 patents)

10.  Joseph Gray (4 out of 5 patents)

11.  Lance L Hood (4 out of 57 patents)

12.  Theresa H Lee (3 out of 3 patents)

13.  Bradley Burton Larsen (3 out of 9 patents)

14.  Janet Ryun (2 out of 3 patents)

15.  Martin Gaard (2 out of 2 patents)


Core Competencies:
Avocado Cutter
Handheld Slicer
Grinding System
Vegetable Steamer
Garlic Chopper
Mandolin Slicer
Food Processor
Collapsible Colander
Cookie Cutter
Citrus Juicer
Nut Chopper
Hulling Device

195 patents:

1. 10842308 - Apparatus and methods for cutting avocados (2020-11-24),
2. 10245737 - Stripping tool for leafy vegetables and herbs (2019-04-02),
3. 10080453 - Lid with retractable straw (2018-09-25),
4. D812407 - Popcorn popper (2018-03-13),
5. 9763541 - Push-pull grind adjustment mechanism and mills comprising the same (2017-09-19),
6. 9737172 - Geared grinding systems, adjustment mechanisms and mills comprising the same (2017-08-22),
7. 9718198 - Stripping tool for leafy vegetables and herbs (2017-08-01),
8. 9186806 - Handheld food slicer (2015-11-17),
9. D742703 - Garlic chopper (2015-11-10),
10. D742185 - Nut chopper (2015-11-03),
11. D737637 - Grinder (2015-09-01),
12. D736555 - Vegetable steamer (2015-08-18),
13. 8991291 - Multiple slicing device (2015-03-31),
14. D722844 - Tomato corer (2015-02-24),
15. D722253 - Palm mincer (2015-02-10),
Chef'n Corporation, based in Seattle, WA, specializes in innovative food processing tools designed to enhance culinary experiences. The company focuses on developing a range of kitchen gadgets, including avocado cutters, handheld slicers, grinding systems, and vegetable steamers. Their product lineup also features garlic choppers, mandolin slicers, food processors, and collapsible colanders, all aimed at improving efficiency and convenience in food preparation. Chef'n is committed to blending functionality with modern design to meet the needs of home cooks.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

Chef'n Corporation
195 Patents

#12 in Seattle, WA

#37 in Washington

#2,108 in US

#4,314 in the World

Seattle, WA (US)
Seattle, WA, United States of America

Chef'n Corporation

Forward Citations = 1,907

23 inventors:

goldMedal David A Holcomb (101 out of 114 patents)

silverMedal Adam A Jossem (52 out of 72 patents)

bronzeMedal Matthew Krus (44 out of 61 patents)

4.  Jonah S Griffith (33 out of 44 patents)

5.  Joshua R Stewart (31 out of 46 patents)

Please report any incorrect information to [email protected]
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