In preparing a patent application, the figures are one of those things where the patent attorney can add considerable value to the patent when the end uses of the patent are taken into consideration. This requires that the patent attorney/agent understand the business goals of the client, and construct the patent application to align with those business goals.
The importance of good figures cannot be understated.
I mean good figures in terms of design and quality, but especially design.
Figures are required “where necessary for the understanding of the subject matter to be patented.” (35 U.S.C. 113) This definition is the minimum necessary, but meeting the minimum standards does not necessarily add value to the client.
In reality, the figures are used by everybody who touches the patent application, patent publication, and issued patent. These people include the client and the examiner, as well as potential infringers, juries, potential licensees, potential purchasers, and investors. A well designed set of figures allows the patent to tell a story: a story that may be different for each of the potential parties.