I stumbled on google's patent search today. If you have time to kill....

http://www.google.com/patents?vid=US...s+and+rigidity

http://www.google.com/patents?vid=US...er+Officinalis

http://www.google.com/patents?vid=US...kinsonism+2004

http://www.google.com/patents?lr=&q=...Search+Patents

http://www.google.com/patents?lr=&q=...Search+Patents

http://www.google.com/patents?lr=&q=...Search+Patents

http://www.google.com/patents?lr=&q=...Search+Patents

~Zucchini