Patent Terms Glossary

DTD

Definition:
Document type definition - a format specification file that accompanies documents prepared according to SGML (standard generalized markup language), including XML (extensible markup language).

Current Filing Basis

Definition:
In applications under §§1 and 44 of the Trademark Act, the applicant may claim more than one basis, and may add or substitute a basis after filing the application.

Group Art Unit

Definition:
A working unit responsible for a cluster of related patent art. Staffed by one supervisory patent examiner (SPE) and a number of patent examiners who determine patentability on applications for a patent.

Patent Family

Definition:
A patent family is the same invention disclosed by a common inventor(s) and patented in more than one country.

Drawing

Definition:
Patent drawings must show every feature of the invention as specified in the claims. Omission of drawings may cause an application to be considered incomplete.

Novel

Definition:
A patent must be new or original. That is, the invention must never have been made in public in any way, anywhere, before the date on which the application for a patent is filed.

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