My Logo: Refine or Redo?

http://www.headleyiplaw.com/

I'm a lawyer. After I worked in large law firms for 25 years, in 2008 I decided to work by myself. My only advertising is my website and "Linked-In". I help both individuals and companies protect their "intellectual property" by helping them get patents, trademark registrations, and copyright registrations. I also represent my clients in lawsuits to enforce those rights in Courts, and, when my clients are sued for allegedly infringing similar rights owned by others, I defend my clients in Court against those accusations.

I do NOT want to attract novices who have no idea what "intellectual property" is. Also, I do NOT want to attract as clients those who can not afford my hourly rate, which is $500/hour. My targets are owners of high-tech, small and medium sized companies, or "in-house counsel" (employee-lawyers) of large high-tech companies. I want to attract people looking for a highly-experienced lawyer in the following fields, listed in my order of priority: patents, trademarks, and copyrights.

Please give me suggested modifications of my existing logo: perhaps in different colors, and/or different outlining, and/or higher quality lines, arrangement, etc.

I have a U.S. federal registration (No. 3,592,858, online copy attached) for my logo. The 3 letters, H-I-P, are the acronym for "Headley Intellectual Property".

I use my logo on my website, my letterhead, my business cards, and I recently decided to put it on coffee mugs and foam coffee cups, so that I can offer coffee to my clients in my office in mugs that they can keep. Therefore, I need the artwork provided to me in a "vector format", preferably "eps".