Best Mode Overview
Overview
The America Invents Act, in section 15, amends 35 U.S.C. § 282 to provide that “the failure to disclose the best mode shall not be a basis on which any claim of a patent may be canceled or held invalid or otherwise unenforceable.”
The specification of a patent application still must include, among other things, the best mode contemplated by the inventor for carrying out the invention, so procedures regarding patent examination do not change. However, post-issue, an already-issued patent will not be held unenforceable due to a lack of best mode disclosure.
Key Dates
The modification regarding best mode went into effect on September 16, 2011, and applies to all proceedings commenced on or after that date.
FAQs
- Does AIA’s amendment to 35 U.S.C. 282(a)(3) impact current patent examination practice regarding evaluation of an application for compliance with the best mode requirement of 35 U.S.C. 112?
- No. As this change is applicable only in patent validity or infringement proceedings, it does not change current patent examination practices set forth in MPEP § 2165.