There are not training offered from the patent office on getting a patent. The patent office advises you to seek guidance from a trademark/patent attorney. A good attorney is highly suggested by the patent office. As a convenience, they have a roster of local Patent Attorneys.

The refrigerator was invented by German engineer Carl Von Linde (June 1842 to November 1934). It was patented by the German Imperial Patent Office in 1877.

Confederate Patent Office was created in 1862.

In the USA the patent office is an agency of the Department of Commerce.

The US Patent and Trademark Office is part of the Department of Commerce.