California

Computer Associates v. Altai in California Law

How Computer Associates v. Altai applies in California: state-specific rules, key cases, and bar exam notes for Copyright / Intellectual Property.

State Approach

California follows the principles established in 'Computer Associates v. Altai' closely, particularly regarding the delineation of software protection and the distinction between idea and expression. The Ninth Circuit, which governs California federal cases, has adopted a similar abstraction test to that which is applied in the federal context.

State Rule
California adheres to the abstraction-filtration-comparison test for determining copyright infringement in software, allowing courts to separate protectable expression from unprotectable ideas, methods, or systems.
Significant State Cases

Apple Inc. v. Psystar Corp.

The court applied the abstraction-filtration-comparison test to determine whether Psystar's software infringed Apple's copyrights, emphasizing the need to separate functional elements from expressive elements.

Sega Enterprises Ltd. v. Accolade, Inc.

This case reaffirmed that courts must analyze the underlying elements of software products to ascertain whether any copyrightable aspects have been infringed.

Gordon v.DMR, Inc.

The court utilized the abstraction-filtration-comparison test to address software copyright infringement, reinforcing the importance of distinguishing between ideas and expression.

Comparison to Federal Law

California law aligns closely with federal copyright principles, especially in cases involving software. Both jurisdictions employ the abstraction-filtration-comparison test; however, California courts may focus more on state-specific nuances related to the applicability of copyright protections in technology.

Bar Exam Note

Understanding the principles from 'Computer Associates v. Altai' is relevant for the California bar exam, especially questions involving copyright infringement and software protection.

Practice Pointers
  • Always apply the abstraction-filtration-comparison test when analyzing software cases.
  • Distinguish between ideas and specific expressions in software to assess copyright claims.
  • Keep abreast of both state and federal rulings on copyright similarities and distinctions.

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