John R. Evans Drafting & Design is a full service,
patent drafting firm located just outside the city
of Philadelphia. We've been in the business of
preparing patent drawings for 50 years. We have
prepared drawings for tens of thousands of patent
applications from painfully simple to painstakingly
complex. A half of a century in the industry has
provided us with an unparalleled level of experience
and insight regarding the patent application process.
This translates into security and peace of mind for
all of our clients. We serve both individual inventors
and large law firms with the same level of
expertise and dedication.