¶ 18.07.03b Alternatives Share a Common Structure - However, the Common Structure is Not a Significant Structural Element and the Alternatives Do Not Belong to a Recognized Class
Although the chemical compounds of [1] share a common structure of [2], the common structure is not a significant structural element because it represents only a small portion of the compound structures and does not constitute a structurally distinctive portion in view of [3]. Further, the compounds of these groups do not belong to a recognized class of chemical compounds. [4]
Examiner Note:
1. In bracket 1: For international applications in the international phase, identify the groups involved by Roman numerals (e.g., "Groups I and II") in accordance with the groups listed using form paragraphs 18.06 - 18.06.02. For U.S. national stage applications under 35 U.S.C. 371 , identify the species involved where species have been listed using form paragraph 18.20.
2. In bracket 2, identify common structure.
3. In bracket 3, insert citation of prior art reference(s) relied upon to demonstrate the commonly shared structure is not distinctive.
4. In bracket 4, explain why the compounds do not belong to a recognized class of chemical compounds.