Design Patent Application

A design patent under 35 U.S.C. § 171 protects the ORNAMENTAL APPEARANCE — the visual look — of an article of manufacture. It protects the way the article LOOKS, not the way it WORKS. WHAT CAN BE PROTECTED: (1) the overall shape or configuration of an article (the three-dimensional form of a consumer product); (2) a surface ornamentation applied to an article (a pattern on fabric, a graphic on a device); (3) a combination of shape and surface ornamentation; EXAMPLES: Apple's iPhone icon grid layout; the Coca-Cola bottle's distinctive curved shape; the Crocs shoe shape; a car body panel design; a furniture silhouette; WHAT CANNOT BE PROTECTED: functional features — features that are dictated solely by the article's function (Seagate v. Western Digital: if the only way to make the article work is through the design, it's functional, not ornamental); a design patent on a purely functional feature is invalid; IDEAS vs. APPEARANCES: a utility patent protects the idea (function/mechanism); a design patent protects the appearance; they can cover the same product concurrently — a Dyson vacuum might have both utility patents (on the cyclone motor) and design patents (on the vacuum's distinctive look); COMPARISON WITH TRADEMARK AND TRADE DRESS: trade dress (§ 43(a) Lanham Act) also protects product appearance but requires secondary meaning (acquired distinctiveness) — much harder to prove for product configurations; a design patent provides immediate protection without proof of consumer recognition; design patent + trade dress can provide layered protection.

A design patent application under 37 C.F.R. § 1.151–1.154 has specific, strict requirements: (1) TITLE: the title must identify the article of manufacture ('Ornamental Design for a Smartphone' or simply 'Smartphone'); (2) SPECIFICATION STATEMENT: one sentence only: 'The ornamental design for [title], as shown and described.'; (3) DRAWING — THE MOST CRITICAL ELEMENT: design patents are almost entirely defined by their drawings; the drawings must show the claimed design from ALL NECESSARY VIEWS: front, back, left side, right side, top, and bottom; perspective views are recommended; all views must be consistent; HATCH LINE CONVENTIONS: solid (dark) lines depict the claimed design; broken (dashed) lines depict unclaimed portions of the article (environmental or excluded features); the line between claimed (solid) and unclaimed (dashed) must be precise; anything drawn in solid lines is part of the design claim; (4) CLAIM: a design patent has ONE AND ONLY ONE CLAIM: 'The ornamental design for [article], as shown and described.'; the single claim incorporates all drawings by reference — the claim scope is defined by what the drawings show; (5) PHOTOGRAPHS: the USPTO allows photographs in lieu of drawings for three-dimensional designs that are difficult to depict in conventional line drawings; photos are allowed but not preferred (drawing quality tends to be more consistent); (6) OATH OR DECLARATION: same as utility patent — signed by the inventor(s); FILING FEE: design patent filing fees are lower than utility patent fees (approximately $240 large / $120 small / $60 micro entity for basic filing).

Design patent prosecution is simpler than utility patent prosecution because there is only one claim and no claim construction in the usual sense: FILING TO EXAMINATION: the USPTO assigns the application to the Ornamental Design examining group (Technology Center 2900); EXAMINATION: the examiner reviews: (1) whether the drawings are complete and consistent; (2) whether the design is novel (§ 102) — no prior design patent, publication, or public sale shows the same overall appearance; (3) whether the design is ornamental (non-functional, § 171); (4) whether the design is non-obvious (§ 103) — differs from prior art in a non-obvious way; ORDINARY OBSERVER TEST: design patent validity and infringement are both analyzed using the 'ordinary observer' test (Egyptian Goddess v. Swisa, Fed. Cir. 2008, en banc): would an ordinary observer, familiar with the prior art, believe the two designs are substantially the same?; TIMELINE: design patent prosecution is generally faster than utility patents; typical pendency: 18–22 months from filing to allowance; track one (prioritized examination) is available for design patents; some examiners allow design patents after a single office action or with no rejections; TYPICAL OFFICE ACTION ISSUES: inconsistencies between views; missing required views; unclear boundary between claimed (solid) and unclaimed (broken) lines; obviousness rejections citing prior designs; TERM: design patents last 15 years from the grant date (AIA change; pre-AIA design patents = 14 years); no maintenance fees required during the 15-year term.

The distinction between solid lines and broken (dashed) lines in design patent drawings is fundamental to defining claim scope — and one of the most strategically important drafting decisions: SOLID LINES = CLAIMED: every feature drawn in solid lines is part of the claimed design; the claim covers the exact visual appearance shown in solid lines; BROKEN LINES = UNCLAIMED (ENVIRONMENTAL CONTEXT): features drawn in broken/dashed lines are specifically excluded from the claim; broken lines show: (a) the environment or context in which the design will be used (e.g., the screen of a smartphone shown in broken lines to show where a UI design appears); (b) portions of the article that the applicant is NOT claiming (allowing the claim to focus on a specific part); STRATEGIC USE OF BROKEN LINES: (1) BROADER CLAIMS: by breaking out portions of the article that vary (e.g., showing different possible screen shapes in broken lines), the applicant can claim a broader ornamental design that covers multiple form factors; (2) PARTIAL DESIGNS: an applicant can patent just a portion of a product's appearance (e.g., the distinctive front face of a device) by showing the entire article but using solid lines only for the claimed portion; (3) AVOIDING LIMITATIONS: features that are incidental and might vary between products should be shown in broken lines so they don't limit the claim; INFRINGEMENT ANALYSIS: the test is whether an ordinary observer would find the accused design substantially the same as the claimed design (solid lines); unclaimed broken-line portions are irrelevant to the infringement comparison; PROSECUTION NOTE: when filing, instruct the draftsperson on exactly which features to claim in solid lines vs. show in broken lines — this decision defines the claim scope from the outset.

Design and utility patent applications differ in purpose, structure, prosecution, and term: PURPOSE: utility patent = protects how something works (function, structure, composition, method); design patent = protects how something looks (ornamental appearance); SPECIFICATION LENGTH: utility patents require detailed written descriptions (often 20–100+ pages), claims, abstract, drawings; design patents require only the title, a one-sentence description, and drawings; CLAIMS: utility patents have multiple claims of varying scope (independent and dependent); design patents have exactly one claim (the single-sentence 'as shown and described' claim); SCOPE DEFINITION: utility patent scope is defined by claim language; design patent scope is defined by the drawings; PROSECUTION: utility patent prosecution involves detailed claim construction, obviousness analysis, § 101 analysis, § 112 analysis; design patent prosecution focuses primarily on the drawings and the ordinary observer test; DURATION: utility patents = 20 years from filing (with PTA); design patents = 15 years from grant (no maintenance fees); COST: design patents are significantly cheaper — lower filing fees, simpler specification, faster prosecution; ENFORCEMENT: utility patents are often more powerful against business methods and technology innovations; design patents are powerful against copying of product appearance (Apple v. Samsung: design patents were the basis for $1 billion verdict at trial); WHAT GETS BOTH: a complex consumer product (smartphone, automobile, appliance) typically gets utility patents on functional innovations PLUS design patents on the distinctive appearance — maximum coverage.