First Sale Doctrine:The first sale doctrine is a related legal principle that allows the purchaser of a copyrighted work to resell, lend, or otherwise dispose of that particular copy without the copyright owner's permission.
Conditional Sale: A conditional sale is a transaction where the patent owner imposes restrictions on the use or resale of the patented product after the initial sale, which can limit the application of patent exhaustion.
Repair Doctrine: The repair doctrine allows consumers to repair a patented product they have purchased without infringing on the patent, as long as the repair does not constitute impermissible reconstruction of the product.