According to USPTO records from the T.E.S.S. database, the USPTO received 440,768 new trademark applications in 2017*. This is a record for the number of US applications filed in a year, and represents a large jump of approximately 13.4% over 2016’s number. 2016 had been the previous record number of applications. The increase of more than 13% is more than double the increase from the prior year.
2017 also appears to have been a record year for the number of registrations issued: 255,008. As of this writing, there are 2,316,139 “live” USPTO trademark registration records in the TESS database.
In 2016, the USPTO saw approximately 389,000 new applications (in January 2017, my search found 399,620 but the number has likely increased due to some foreign filings and divided applications).
In 2015, the USPTO saw approximately 378,000 new applications (in January 2016, my search found 370,271 but the number has likely increased due to some foreign filings and divided applications).
In 2014, the USPTO saw approximately 345,000 new applications (In January 2015, my search found 336,239 but the number showing 2014 filing date has likely increased due to some foreign filings and divided applications).
With the rate of growth in application filings and registrations issued, the USPTO trademark register indicates steady and increasing growth in the economy.
* Data from TESS search on January 6, 2018