A patent portfolio is a collection of patents owned by a single entity, such as an individual or corporation. The patents may be related or unrelated. Patent applications may also be regarded as included in a patent portfolio.
The monetary benefits of a patent portfolio include a market monopoly position for the portfolio holder and revenue from licensing the intellectual property. Non monetary benefits include strategic advantages like first-mover advantages and defense against rival portfolio holders. Constituting a patent portfolio may also be used to encourage investment.
Market value and evaluation
The value of a corporation's patent portfolio can be a significant fraction of the overall value of the corporation. Ocean Tomo LLC, for example, maintains an index of corporations whose market value is governed in large part by their patent portfolio value. The index is called "Ocean Tomo 300 Patent Index". 
Another example is the acquisition in 2006 of IPscore by the European Patent Office, a software application, developed by the Danish Patent and Trademark Office, the purpose of which is to estimate "the economic value of patents and development projects".
- ^ "My company is relatively new, and we are interested in ... encouraging investment by demonstrating a growing international patent portfolio." in Entering the national phase early where the international application has not yet been published, Practical Advice, PCT Newsletter No. 10/2011, page 15ff.
- ^ Ocean Tomo web site, Ocean Tomo 300V Patent Index. Consulted on November 27, 2006.
- ^ European Patent Office web site, The European Patent Office acquires IPscore, the patent portfolio evaluation tool, Official Communication, December 29, 2006, consulted on December 30, 2006.
- Patent troll
- Patent holding company
- Patent map
- Patent pool
- Patent thicket
- Intellectual property valuation
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