Is cad patent difficult to write?

The necessary documents for a patent application include a patent application request, a patent application document and a certificate of fee reduction, among which the patent application document includes the patent claim, the specification and the abstract of the specification.

First of all, search on the patent website to evaluate whether the patent can be authorized. Then use CAD software to draw pictures, simply express the objects or other things you want to write in the form of CAD drawings and mark them. The next step is to write claims and dependent claims, requiring concise language.

However, "there is specialization in the industry", and you can also find relevant qualified institutions to apply for patents, and the chances of being authorized will be higher.