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For the Inventor, By the Inventor

Kreuzlingen, Switzerland

Meyhall Ag


USPTO Granted Patents = 3

% Expired Patents = 66.7

Trademarks = 1

Forward Citations = 5

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2 inventors (with patents filed for the assignee):

goldMedal Willem Cor Wielinga (3 out of 3 patents)

silverMedal Jean-Marc Ricca (2 out of 19 patents)


3 patents:

1. 8993015 - Method for manufacturing pure guar flour (2015-03-31),
2. 8529969 - Method for manufacturing pure guar meal (2013-09-10),
3. 6664381 - Process for producing pure guarseed flour (2003-12-16),
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USPTO Data Jan 1 1976 - Sep 29 2026

3 Patents

#7 in Kreuzlingen

#2,398 in Switzerland

Kreuzlingen, CH
Kreuzlingen, Switzerland

Meyhall Ag

Forward Citations = 5

2 inventors:

goldMedal Willem Cor Wielinga (3 out of 3 patents)

silverMedal Jean-Marc Ricca (2 out of 19 patents)

Please report any incorrect information to [email protected]
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