6/15/2016: I learned today the my patent US 8,263,069 Composition including anthocyanins and anthocyanidins for prevention and or treatment of articular cartilage associated conditions. September 11, 2012 was granted expansion of the claims to include direct intra articular injection. This took 4 years of legal argument to overcome the original objections.
This paves the way for intra articular injection of arthritic joints to change the distructive chemistry and preserve and protect the present state of the cartilage. To date there is not a sure way to restore articular cartilage, but working on it.