Although Chiari malformation may be present with no symptoms at all, this crowding can cause a backup of spinal fluid in the spinal canal which often results in problems which may or may not change in the adult such as: Sub-occipital pressure headache, especially when coughing, sneezing or straining.
Patent applications involve lots of text and drawings, even for simpler inventions. The first step in the patent application process is to file a non provisional patent application, which involves paying attorney fees in the range of $5000 to $15,000 or more, depending on the intricacies of the invention. The amount you spend on a patent application will also depend on the market opportunities.
If you are looking for experienced patent attorneys at a reputable firm you should anticipate hourly rates to be a minimum of $300 per hour in areas outside major metropolitan areas and somewhere between $400 to $700+ per hour in major metropolitan areas. You may also want to consider working with a patent agent. Although patent agents are not attorneys and do not have the same breadth of legal knowledge, there are certainly many competent patent agents and even those with 5+ years of experience generally charge $200 to $400 per hour.