As a USPTO-registered patent attorney in La Mesa's Casa de Oro district, Richard D. Clarke Patent, Trademark & Copyright Attorney holds California State Bar license #168447 and practices from 3755 Avocado Boulevard. Trademark portfolio builds for small businesses and startups involve federal registration through the USPTO's TEAS system, and creative agencies such as Four Fin Creative represent the type of commercial client whose brand assets require Section 1(a) use-based or Section 1(b) intent-to-use filings. Patent prosecution covers utility and design applications, with prior-art searches conducted through USPTO databases, Google Patents, and international WIPO filings to assess patentability under 35 U.S.C. Sections 101 through 103. Copyright registration through the U.S. Copyright Office protects original works of authorship, and the practice handles DMCA takedown actions and licensing agreements for software, visual media, and written content. The IP practice intersects with business law handled by firms like the Intellectual Property Law Office of W. Eric Boyd, reinforcing the Mt Helix area's concentration of specialized legal services along Avocado Boulevard. The most technically demanding engagements involve provisional-to-nonprovisional patent conversions with continuation-in-part claims, inter partes review defense before the Patent Trial and Appeal Board, and trade-secret litigation under the federal Defend Trade Secrets Act of 2016.