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A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

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US patent class 717: software development, installation, and management
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US patent class 707: data processing: database and file management or data structures
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World Intellectual Property right application, and question relates to procedures and rules followed in PCT.
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Questions specifically relating to the patent system of the United Kingdom.
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US patent class 345: computer graphics processing and selective visual display systems
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For questions relating specifically to the description part of a patent. General information: the description is not what the patent protects, only the claims define the scope of protection.
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the payment of fees to maintain the right in force.
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Related to patents filed, licensed or prosecuted by Applicant IBM
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Questions related to the Patent Application Information Retrieval (PAIR) system at USPTO
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Reinstatement of a patent after a Failure to Pay Maintenance Fees.