What is the “rule of reason” in determining conception in patent law?

What is the “rule of reason” in determining conception in patent law? The “rule of reason” is a principle applied by courts when evaluating evidence of conception in patent cases. According to MPEP 2138.04, “An inventor’s testimony, standing alone, is insufficient to prove conception unless it is corroborated, a rule that the courts have recognized…

Read More

Can an inventor’s testimony alone prove conception in a patent case?

Can an inventor’s testimony alone prove conception in a patent case? While an inventor’s testimony is important, it is generally not sufficient on its own to prove conception in a patent case. The MPEP 2138.04 states: “An inventor’s testimony, standing alone, is insufficient to prove conception, as some form of corroboration is required.” This requirement…

Read More