Ridder Costa and Johnstone

A California law firm practicing intellectual property and internet law. Ridder, Costa & Johnstone represents businesses, nonprofits, and individuals in litigation, counseling, and transactional matters. Its work includes copyright and trademark disputes, trademark registration, brand strategy, intellectual property licensing, and domain name matters. The firm also advises on software and technology transactions, online contracts, platform regulation, computer security, and data privacy, including GDPR and CCPA compliance. Attorneys represent people harmed online in matters involving unlawful content, defamation, harassment, identity theft, and invasion of privacy. Services include electronic evidence preservation, litigation, and restraining order matters. The firm's practice covers technology, creative works, and the legal issues surrounding digital platforms and online speech.