Trademark portfolio management is the practice of managing a company's trademarks portfolio in order to maximize their value and protect the company's intellectual property. They can include any number of trademarks, both registered and unregistered, and may be owned by the company itself or leased from an external party.

To achieve these goals, trademark portfolio management involves a variety of tasks, including:

1) Determining which trademarks to invest in: A key part of a trademark portfolio management company is deciding which trademarks to invest in. Trademark investment depends on a number of factors, including the relevance of the trademark to the company's business and the likelihood that it will be infringed.

Image Source: Google

2) Evaluating potential infringers: Once a company has determined which trademarks to invest in, it must also assess potential infringers. This involves identifying any parties who may be infringing the marks and implementing measures to prevent further infringement.

3) Monitoring infringing activity: Once a company has identified potential infringers, it must continuously monitor their activities in order to ensure that no further infringement  takes place. This involves using a variety of tools, including monitoring reports and trademark infringement lawsuits.

4) Protecting the trademarks: Once a company has determined that it needs to protect a trademark, it must take appropriate action, such as filing copyright or trademark registrations.