What type of requests might be made under accelerated examination?

The correct answer is related to requests made under accelerated examination specifically aimed at applications that relate to environmental quality. The U.S. Patent and Trademark Office (USPTO) allows applicants to expedite the examination of their patent applications if these applications address issues concerning environmental quality. This is part of the broader intention to promote innovations that can provide environmental benefits, reflecting a policy priority of the USPTO to advance technologies that have a positive impact on environmental challenges.

In this context, certain criteria need to be satisfied by applicants to qualify for accelerated examination based on environmental quality, including that the invention should be aligned with the policies geared towards carbon emissions reduction, pollution control, etc. Thus, the focus on environmental improvements can effectively lead to expediting the patenting process, allowing inventors to bring their solutions to market quicker.

The other options do not pertain to accelerated examination requests as established by USPTO guidelines. Requests for design patents are not exclusive to accelerated examination, and while certain applications may concern foreign acceptance of patents or extending grace periods, these topics are not relevant for the criteria set for expediting examination based on the environmental quality focus.