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 nature of the invention is a crucial factor in assessing whether the required experimentation is reasonable or undue. While not explicitly stated in the given MPEP section, it’s important to consider this factor as mentioned in the Wands factors. The complexity and predictability of the technology field can significantly impact what’s considered “undue experimentation.”
For example:
- In highly predictable fields, less guidance may be needed
- In unpredictable arts (e.g., biotechnology), more detailed guidance and examples may be required
- The more complex the invention, the more likely that detailed instructions or working examples will be necessary
Patent examiners and courts will consider the nature of the invention in conjunction with other factors like the amount of direction provided, the state of the prior art, and the skill level of a person of ordinary skill in the art when determining if the experimentation required is “undue.”