United States Patent Office www.uspto.gov
World Patent Office www.wipo.int
Oklahoma Manufacturing Alliance http://okalliance.com
Oklahoma State University
Patent Library & Repository www.library.okstate.edu/patents
Oklahoma Inventors Congress http://oklahomainventors.com
Many state Universities across the Untied States have been designated as a local repository for the Patent & Trademark office. Many states also offer inventor assistance programs funded by each state. You are encouraged to locate one of these in your state if you have any questions or are seeking assistance for your invention development and perhaps even invention funding assistance, if available.