The U.S. Supreme Court case Estate of P.D. Beckwith, Inc. v. Commissioner of Patents in 1919 revolved around the issue of patent rights and their transfer upon death or dissolution of a corporation. The court had to determine whether a patent right could be transferred to an estate after the death or dissolution of its original owner, which was P.D Beckwith Inc., in this case. P.D Beckwith Inc., held several patents for stove designs and when it dissolved, these patents were transferred to its successor company - Round Oak Stove Company - as part of the liquidation process. However, later on, there arose disputes over who should rightfully own these patents: The successor company (Round Oak Stove Company) or the estate left behind by P.D Beckwith? After careful consideration and deliberation on existing laws surrounding intellectual property rights at that time; particularly those concerning transfers through inheritance or succession; the Supreme Court ruled in favor of Round Oak Stove Company stating that once assigned during life (or before dissolution), patent rights cannot revert back to an individual's estate posthumously.

The dissenting opinion in the case of Estate of P.D. Beckwith, Inc. v. Commissioner of Patents argued that the patent should not have been invalidated due to lack of novelty and non-obviousness as determined by the majority opinion. The dissent emphasized that there was sufficient evidence demonstrating a significant improvement over existing technologies at the time, thus meeting criteria for patentability under U.S law. They also disagreed with how prior art references were interpreted and applied in this case, arguing they did not teach or suggest all elements claimed in Beckwith's invention when considered individually or collectively. Furthermore, they believed commercial success achieved by Beckwith's stove design indicated its non-obviousness to those skilled in relevant arts during its invention period.