What is one of the types of corrections permitted under Rule 1.48 for Provisional applications?

One of the types of corrections permitted under Rule 1.48 for provisional applications is adding or deleting inventors by filing an executed declaration. This rule allows an applicant to amend the list of inventors in a provisional application, which is important for accurately reflecting the individuals who contributed to the invention.

The ability to modify inventorship is crucial because it ensures that all parties entitled to rights from the patent application are properly recognized. This correction must be accompanied by an executed declaration from the individuals being added or removed, affirming their status as inventors or non-inventors.

Other options, such as changing the invention's specification or changing the filing date of the application, are not allowed under this rule. Provisional applications are often fluid in their development, and thus, while certain corrections like inventorship adjustments can be made, the integrity of the initial filing date and the original specification must be maintained. Compiling claims after filing is also not a permitted correction for provisional applications. Hence, the focus is on ensuring the correct inventorship reflects the innovative contributions, making the option involving the filing of an executed declaration the correct one.