The little R inside the circle means that the logo is registered and cannot be duplicated by another company. I'm not familiar with the U...

The circle-R is Registered Trademark Circle U stands for Union and it means it is Kosher

R means registered trademark. U means Union Orthodox.

1) "The ™ symbol may be used when trademark rights are claimed in relation to a mark, but the mark has not been registered with the government trademarks office of a particular country or jurisdiction, while the ® is used to indicate that the mark has been so registered. It is not mandatory to use either symbol, although the force of convention is such that the symbols are widely used around the world. In some jurisdictions, use of the ® symbol is highly advisable (provided that the mark is actually registered) as it can help in claiming damages from an infringer if the trade mark has to be enforced through the relevant Court. However, in various jurisdictions it is unlawful to use the ® symbol in association with a mark when that mark is not registered. Either symbol is typically placed in the top left- or right-hand corner of a mark." Source and further information: http://en.wikipedia.org/wiki/Registered_trademark 2) "The Union of Orthodox Jewish Congregations of America (UOJCA), more popularly known as the Orthodox Union, or OU, is one of the oldest Orthodox Jewish organizations in the United States. It is best known for its kosher supervision service, with the circled-U symbol found on the labels of many commercial and consumer food products." Source and further information: http://en.wikipedia.org/wiki/Orthodox_Union Further information: http://en.wikipedia.org/wiki/Kosher_foods

Thank you all so much for your answers. May the All powerful, Almighty Creator who is One and Only, reward you guys for the sincere knowledge that you all spread to people who want to learn. Continou the good work!! Peace!!!