Posix Standards and the Law: Interoperability Patents and API Copyright

65 questions on posix standards and the law, answered and cited by the UpLaw editorial team.

• Can the text of a standard stay locked behind copyright once it becomes law?
• How did Broadcom v. Qualcomm turn a false FRAND promise into antitrust exposure?
• How did Microsoft v. Motorola make FRAND enforceable and priceable?
• How did the U.S. government make POSIX conformance a command?
• How does a device maker fall into the GPL trap without stealing anything?
• How does portability value become a legal target?
• How does portability work in practice for a company writing to the standard?
• How does the decision de-risk a clean-room reimplementation of POSIX?
• How do permissive and copyleft licenses differ?
• How do POSIX, the Single UNIX Specification, and the UNIX mark differ?
• How do the copyright and open-source analyses hold each other up?
• How do the FAR and DFARS treat a vendor's commercial software license?
• How has SEP enforcement policy swung across administrations?
• How would a patent become a chokepoint on a threading standard?
• Is POSIX a law?
• What are the compliance rules for employees attending standards meetings?
• What are the five legal faces of a single technical standard?
• What did the Rambus matter establish, and where did it fail?
• What did the Supreme Court hold in Google v. Oracle, and what did it shrewdly avoid?
• What does a certification mark actually lock up?
• What does an open-source compliance program require?
• What does Google v. Oracle do for standards like POSIX, and what does it not do?
• What does Hydrolevel teach about a standards body's own liability?
• What does POSIX actually specify?
• What five hallmarks define a competitively sound standard-selection process?
• What happened to the FTC's case against Qualcomm?
• What is a DOJ business review letter, and how has the IEEE used one?
• What is a FRAND commitment, and what is its legal character?
• What is a patent ambush?
• What is a standard-essential patent?
• What is patent holdup, and what is patent holdout?
• What is the common thread running through everything POSIX defines?
• What is the difference between an interface and an implementation?
• What is the federal policy on relying on voluntary consensus standards?
• What is the unifying theme across all five faces?
• What other FTC tools have reached standards-related conduct?
• What problem was POSIX created to solve?
• What reasoning made Google's copying fair use?
• What should a company do before contributing technology to a standards body?
• What should counsel do before reimplementing an interface?
• What statutory safe harbor exists for standards development organizations?
• What three legal consequences follow from incorporation by reference?
• What value does good counsel add on a standards-adjacent matter?
• What was the dispute in Google v. Oracle?
• When does using a standards process to exclude a rival violate the Sherman Act?
• Where does the name POSIX come from, and what design decision mattered most?
• Where is the POSIX/FIPS pattern repeating today?
• Which institutions write and maintain POSIX?
• Which standard EULA clauses simply cannot bind the government?
• Why are the stakes of the API copyright question so high for a standard?
• Why can macOS call itself UNIX but Linux cannot?
• Why does antitrust law watch standards bodies so warily?
• Why does a standard drag open-source license obligations along with it?
• Why does a technical standard become a magnet for litigation?
• Why does open-source licensing matter to a company that is "just using a standard"?
• Why does the conformance gap become dangerous on a government invoice?
• Why does the dual IEEE 1003 / ISO/IEC 9945 identity matter legally?
• Why does the IEEE matter to both the engineering and the law here?
• Why is an open-source violation copyright infringement rather than mere breach?
• Why is glibc's LGPL license load-bearing for the software industry?
• Why is POSIX conformance a spectrum rather than a yes-or-no proposition?
• Why is the gap between conforming in fact and certified to conform a legal line?
• Why is the tri-partite POSIX structure defensive legal engineering?
• Why must the five analyses be run at the same time rather than sequentially?
• Why should counsel treat Google v. Oracle as a limit rather than a hall pass?