Humanities › History & Culture A Beginner's Guide to Design Patents Share Flipboard Email Print M. J. Rivise Patent Collection / Getty Images History & Culture Inventions Patents & Trademarks Famous Inventions Famous Inventors Invention Timelines Computers & The Internet American History African American History African History Ancient History and Culture Asian History European History Genealogy Latin American History Medieval & Renaissance History Military History The 20th Century Women's History View More By Mary Bellis Inventions Expert Mary Bellis covered inventions and inventors for ThoughtCo for 18 years. She is known for her independent films and documentaries, including one about Alexander Graham Bell. our editorial process Mary Bellis Updated January 29, 2020 According to USPTO patent law, a design patent is granted to any person who has invented any new and nonobvious ornamental design for an article of manufacture. The design patent protects only the appearance of an article, but not its structural or functional features. In layman's term a design patent is a type of patent that covers the ornamental aspects of design. The functional aspects of an invention are covered by a utility patent. Both design and utility patents may be obtained on an invention if it is new both in its utility (what makes it useful) and its appearance. The application process for a design patent are the same as those relating to other patents with a few differences. A design patent has a shorter term of 14 years, and no maintance fees are necessary. If your design patent application passes its examination, a notice of allowance will be sent to you or your attorney or agent asking for you to pay an issue fee. The drawing for a design patent follow the same rules as other drawings, but no reference characters are allowed and the drawing(s) should clearly depict the appearance, since the drawing defines the scope of patent protection. The specification of a design patent application is brief and ordinarily follows a set form. Only one claim is permitted in a design patent, following a set form. Below find examples of design patents from the past 20 years. Front Page of Design Patent D436,119 Front Page of Design Patent D436,119. United States Patent - Patent No.: US D436,119 BolleDate of Patent: January 9, 2001 Eyeglasses Inventors: Bolle; Maurice (Oyonnax, FR)Assignee: Bolle Inc. (Wheat Ridge, CO)Term: 14 yearsAppl. No.: 113858Filed: November 12, 1999Current U.S. Class: D16/321; D16/326; D16/335Intern'l Class: 1606/Field of Search: D16/101,300-330,335 351/41,44,51,52,111,121,158 2/428,432,436,447-449 D29/109-110 References Cited U.S. PATENT DOCUMENTS D381674 * Jul., 1997 Bernheiser D16/326.D389852 * Jan., 1998 Mage D16/321.D392991 Mar., 1998 Bolle.D393867 * Apr., 1998 Mage D16/326.D397133 * Aug., 1998 Mage D16/321.D398021 Sep., 1998 Bolle.D398323 Sep., 1998 Bolle.D415188 * Oct., 1999 Thixton et al. D16/326.5608469 Mar., 1997 Bolle.5610668 * Mar., 1997 Mage 2/436.5956115 Sep., 1999 Bolle. OTHER PUBLICATIONS Eight Bolle Catalogs for 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998. * cited by examiner Primary Examiner: Barkai; RaphaelAttorney, Agent or Firm: Merchant & Gould P.C., Phillips; John B., Anderson; Gregg I. CLAIM The ornamental design for eyeglasses, as shown and described. DESCRIPTION FIG.1 is a perspective view of eyeglasses showing my new design;FIG.2 is a front elevational view thereof;FIG.3 is a rear elevational view thereof;FIG.4 is a side elevational view, the opposite side being a mirror image thereof;FIG.5 is a top view thereof; and,FIG.6 is a bottom view thereof. Design Patent D436,119 Drawing Sheets 1 Drawing Sheet 1. FIG.1 is a perspective view of eyeglasses showing my new design; FIG.2 is a front elevational view thereof; Design Patent D436,119 Drawing Sheets 2 Drawing Sheet 2. FIG.3 is a rear elevational view thereof; FIG.4 is a side elevational view, the opposite side being a mirror image thereof; FIG.5 is a top view thereof; and, Design Patent D436,119 Drawing Sheets 3 Drawing Sheet 3. FIG.6 is a bottom view thereof.