Linked from

The 48 pages that link to Patent, each with the reason it gives.

• MonopolyRelated: Patents grant temporary exclusivity, trading competition for incentives to innovate.

• Crystal polymorphismRelated: A newly characterized polymorph may become the subject of a separate patent claim.

• Rent-seekingRelated: Patent lobbying can seek broader or longer exclusivity, though patents can also reward genuine innovation.

• Creative destructionRelated: Patents can reward innovation while also delaying competition and replacement.

• Economic rentRelated: Exclusion can let an inventor earn returns above the minimum needed to develop and supply an invention.

• OriginalityRelated: Patent law tests invention through requirements such as novelty and nonobviousness, distinct from creative originality.

• Active pharmaceutical ingredientRelated: Patents can protect inventions involving an API and affect when competitors enter.

• Endogenous growth theoryRelated: Temporary exclusivity can reward research while limiting the spread of knowledge.

• LicensingRelated: Patent licenses let others practice an invention under agreed conditions.

• BiopiracyRelated: Patent claims can turn biological discoveries or inherited knowledge into exclusive commercial rights.

• Pin tumbler lockRelated: Patents record successive designs and improvements to pin tumbler mechanisms.

• Seed drillRelated: Tull patented an early seed-drilling machine in 1701.

• Perpetual motionRelated: Some patent systems require a credible working demonstration, making perpetual-motion claims difficult to patent.

• Clarence BirdseyeRelated: Birdseye patented freezing machinery and processes to support his commercial ventures.

• ScrunchieRelated: The scrunchie’s invention was documented through a patent granted to Revson.

• SporkRelated: Patent records document early attempts to protect combined eating-utensil designs.

• Lizzie MagieRelated: Magie patented her game in 1904, documenting her authorship and intended rules.

• Margaret E. KnightRelated: Patents recorded and protected several of Knight's mechanical inventions.