What are the main types of non-prior art rejections in patent examination?
Source: FAQ (MPEP-Based)BlueIron Update: 2024-09-10
This page is an FAQ based on guidance from the Manual of Patent Examining Procedure. It is provided as guidance, with links to the ground truth sources. This is information only: it is not legal advice.
The MPEP 706.03 outlines several types of rejections not based on prior art that may occur during patent examination. These include:
- Non-statutory subject matter (35 U.S.C. 101) – See MPEP 2106
- Lack of utility (35 U.S.C. 101) – See MPEP 2107
- Subject matter barred by the Atomic Energy Act – See MPEP 2104.01
- Subject matter directed to tax strategies – See MPEP 2124.01
- Subject matter directed to a human organism – See MPEP 2105
- Duplicate claims – See MPEP 608.01(m)
- New matter – See MPEP 608.04 and MPEP 2163.06
- Improper Markush groupings – See MPEP 2117
- Rejections based on 35 U.S.C. 112 (written description, enablement, indefiniteness) – See MPEP 2161-2174
These rejections focus on statutory requirements beyond novelty and non-obviousness, ensuring that patent applications meet all legal criteria for patentability.