In the 1932 case of General Electric Co. et al. v. Marvel Rare Metals Co. et al., the U.S Supreme Court was tasked with deciding on a patent dispute between the two companies over an alloy used in electric lamps and other electrical devices known as "ductile tungsten." The court had to determine whether or not General Electric's (GE) patent for ductile tungsten, which it claimed to have invented, was valid or if Marvel Rare Metals Company had actually been the first to invent it. The Supreme Court ruled in favor of GE, upholding its patent rights over ductile tungsten. The court found that while both companies were working independently towards creating this alloy around the same time period, GE was able to provide sufficient evidence proving they were indeed first in making and using this invention successfully. This ruling reinforced principles regarding patents such as priority of invention and emphasized that mere conception without reduction into practice does not constitute invention under US Patent Law.

The dissenting opinion in the case of General Electric Co. et al. v. Marvel Rare Metals Co. et al., 1932, argued that the majority's decision to uphold a lower court ruling against General Electric (GE) was incorrect because it failed to consider GE's right to protect its trade secrets and proprietary information from being used by former employees who had moved on to work for competitors like Marvel Rare Metals Company. The dissenters believed that GE should have been allowed more leeway in enforcing non-compete clauses with their ex-employees, especially when those individuals were privy to sensitive company information which could potentially harm GE if shared with rivals or made public knowledge without proper authorization or safeguards put into place beforehand.