Welcome to the Head, Johnson & Kachigian Website. Head, Johnson & Kachigian is a law firm specializing in the practice of intellectual property law. Our practice is broad-ranging, from all aspects of patent, trademark, and copyright law, to advice on entertainment law, domain names, security interests in intellectual property, licensing, brand protection, anti-counterfeiting, franchising, and other legal areas dealing with technology.

Founded in 1958, the firm Head, Johnson & Kachigian is based in Tulsa, Oklahoma. We have undertaken both large and small projects for our clients in terms of filing U.S. and foreign patent and trademark applications, litigating matters in the U.S. and overseas, and advising our clients regarding intellectual property rights. Even though Head, Johnson & Kachigian is a small-sized intellectual property law firm, we have the clout and experience of a larger firm, yet are sufficiently nimble to keep our clients satisfied.

Head, Johnson & Kachigian's attorneys provide legal and technical expertise in aviation, biotech, electrical, mechanical, chemical, and computer science for domestic and international clients in major areas of technology and business. Support staff includes Professional Patent Searcher, Draftsman and legal assistants specializing in domestic and international intellectual property law and filing procedures.

In 2006, Head, Johnson & Kachigian ranked among the top Patent and Trademark Firms in the United States. Head, Johnson & Kachigian ranked as the Top Patent Firm in Oklahoma, Arkansas and Kansas, by Intellectual Property Today based upon the number of patents issued. Also, in 2006, Head, Johnson & Kachigian ranked among the top Trademark Firms in the United States, and ranked as the Top Trademark Firm in in Oklahoma, Arkansas and Kansas based upon the number of issued trademark registrations.