Reviews

I had submitted an application as pro se inventor. The application involved complex concepts from mathematics, computer science and spreadsheets. I was initially concerned it would be very expensive and difficult to find an attorney with a background in the subject matter who would be able to help me so I decided to go it alone. After I received the first office action, I realized I needed professional help to deal with the USPTO. After some search I thought Dr. Hsuanyeh Chang’s scientific background and software experience would be a good fit so I decided to approach him for initial consultation and I must say I am glad I did. He was very responsive from the very beginning. Agreed to meet with me the next day on a weekend at a relaxed setting to go over what I have done. I was impressed by his intelligence, thorough understanding of the patent law, how the USPTO actually works, and most importantly his friendly character and professionalism. I decided to retain him to help me prosecute the patent and we have come a long way since. Dr. Chang has put necessary time and effort to understand the invention and drafted new eloquent and inclusive claims that have easily overcome prior art. After receiving second office action, I decided it was worth having in person interview for the opportunity to demo the invention and discuss remaining issues. I flew with Dr. Chang to USPTO offices in VA and we had a positive meeting with the examiner. It was a fun trip and it was certainly a pleasure to have Dr. Chang’s company. Dr. Chang responded to second office action diligently and hopefully we are nearing allowance. I have learned quite a bit from Dr. Chang during the process. He has also offered me valuable advice on other issues related to my startup company. If you are thinking dealing with the patent office is like dealing with a technical journal editor or referee you are wrong. It is a very different experience and requires different skill and know how. Selecting the right council from the beginning is critical for success. Dr. Chang is an inventor himself, an experienced attorney and a very nice and reasonable person to work with. I look forward to continue working with him for the long run and would highly recommend him.

Mr. Chang was very easy to work with. He was very knowledgeable with patent issues. I am a pro se inventor, however, I had certain claim rejections in my submitted patent. Mr. Chang was able to fix the error very quickly, and I was able to study the draft with still plenty of time to spare. Every email I sent to him was replied within the same day, sometimes in a matter of hours. The best part of rebutting my patent issues against USPTO, Mr. Chang was able to figure out certain key claims, which I have left out of the original claims. I thank Mr. Chang for his guidance and aid over my issues. Mr. Chang was also very knowledgeable with start up company issues. His encouragement over my invention is very much appreciated. I look forward to continue working with Mr. Chang in the future for other patent applications, etc. I will and have recommended his service to my business associates.

Mr. Chang is a very reliable person to work with. I'm impressed by his wide knowledge witch saved me a lot of hassle in terms of intellectual property and business law. As we collaborate, he responds to question quickly and accurately (mostly within an hour). Overall I am very pleased with my decision of collaborating with Mr. Chang.