CASTELLANO PLLC is a specialized intellectual property law firm focused on developing strong, comprehensive IP strategies that create sustainable economic value for clients. With a commitment to high-quality services at reasonable costs, the firm stands out for its strategic location near major IP forums and its hands-on approach led by senior attorneys.
The firm’s attorneys bring extensive legal expertise, technical knowledge, and industry-specific experience, enabling them to quickly grasp client inventions and navigate the complex interactions between technology, IP law, and industry dynamics. They work directly with inventors and scientists, maintaining close collaboration throughout each project to help clients—from startups to Fortune 100 companies—achieve their strategic and financial IP goals at every growth stage.
Services Offered
- Patent Services
- Trademark Services
- Copyright Counseling and Registration
- Litigation & Trial Practice
- USPTO Post Grant Practice
- Business Counseling
- Brand Protection
- Advertising
- Commercial Litigation
- Corporate Governance
- Due Diligence
- Invention Mining
- IP Monetization
- IP Portfolio Audits
- Technology Transactions
- Intellectual Property Licensing
- Trade Secret Protection
- IP Portfolio & Strategy Counseling
- Trademark Application Preparation, Filing, Prosecution
- Trademark Application Appeals
- Patent Counseling and Invention Counseling
- Patent Application Drafting, Filing, Prosecution
- Patent Application Appeals
- Patent Portfolio Planning and Development
- Patentability Counseling and Opinions
- Patent Non-Infringement and Invalidity Counseling and Opinions
- USPTO Patent Proceedings: Inter Partes Reviews, Post-Grant Reviews, Ex Parte Reexamination, Reissues, Appeals, PTAB Trial Practice
- USPTO Trademark Proceedings: Trademark Oppositions, Trademark Cancellations, Appeals, TTAB Trial Practice
- Negotiation, Licensing, Enforcement
- Patent Litigation
- Administrative and Federal Court Litigation
- Jury and Bench Trials
- Federal District Court Cases
- Federal Circuit Appeals
- US International Trade Commission Cases
With offices in Washington, DC, Alexandria, Virginia, and Annapolis, Maryland, the firm serves clients worldwide across diverse industries including automotive, artificial intelligence, robotics, computer software, fintech, medical devices, aerospace, and life sciences.
