Last Updated: June 9, 2026

Details for Patent: D342994


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Summary for Patent: D342994
Title:Inhalator
Abstract:
Inventor(s):Paul K. Rand, David J. Hearne
Assignee: Glaxo Group Ltd
Application Number:US07/821,555
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

United States Design Patent D342,994: Scope, Claim Structure, and Landscape

What is US Design Patent D342,994 and what does it cover?

US Design Patent D342,994 is a design patent that protects the ornamental design of a product as shown in the issued patent drawings. Design patents in the USPTO system do not claim functional aspects; they claim the visual appearance.

Because the design claim scope in a USPTO design patent is tied to the figures (drawings), the controlling “scope” is the set of visual views and the specific surface/shape features depicted.

For a drug portfolio context: a US design patent may relate to the appearance of a drug-related article (for example, a container, packaging, device housing, or an identifiable branded visual form). However, the enforceable scope of D342,994 remains limited to the ornamentation shown in its drawings, not the drug composition, method of treatment, or manufacturing.

What are the claim(s) in D342,994?

USPTO utility and design patents use different claim frameworks. For design patents, the claim is typically singular and covers the ornamental design shown.

Design patent claim structure (standard form):

  • A single claim that reads in substance:
    The ornamental design for [article] as shown and described” in the patent drawings.

This structure means infringement analysis centers on substantial similarity between the accused design and the patented design as a whole.

What is the scope test used to assess infringement for a design patent?

Design patent infringement uses a point-of-view standard anchored in:

  • the overall visual impression of the claimed design
  • comparison between the patented design and the accused design
  • whether differences are sufficient to change the overall impression

The legal consequence for portfolio strategy: competitors can often design around by altering features that change the overall visual impression, even if the overall article type remains the same.

What is the effective field of protection for D342,994?

For a US design patent, protection is limited to:

  • the ornamental look of the depicted article
  • the visual configuration in the drawings (including contours, shapes, surface ornamentation, patterns, and relative placement of visible elements)

Protection is not extended to:

  • drug active ingredients
  • dosing regimen
  • manufacturing process
  • therapeutic method claims
  • label content that is not part of the claimed ornamental design depiction

Claim landscape summary (what matters for freedom-to-operate and enforcement)

Because the claim is visual, the relevant landscape questions are:

  • Which later patents or designs share a substantially similar overall visual impression?
  • Which design patents predate D342,994 and claim similar ornamental configurations?
  • Which alternatives in the market plausibly avoid “overall visual impression” similarity through different geometry or ornamentation?

For investment diligence, this drives two diligence tracks:

  1. Prior design search around the same article type and time window.
  2. Market accused design comparison: visual comparison to candidate products and packaging/device housings.

How broad is the claim coverage in practice?

What features usually define the protected “overall visual impression”?

Even where the patent claim is broad in wording, design patents narrow in practice to the drawings. The features that typically carry most weight in overall impression include:

  • silhouette and proportions (overall shape)
  • arrangement of prominent elements
  • surface ornamentation (lines, patterns, textures)
  • placement and geometry of visually distinct components

The stronger a competitor’s resemblance on these elements, the higher the infringement risk.

What would be “easy” versus “hard” design-arounds?

Easy design-arounds generally involve:

  • changing the silhouette
  • reconfiguring element placement
  • altering surface ornamentation patterns enough to change overall impression

Hard design-arounds generally involve:

  • only minor deviations that leave the overall impression largely intact
  • copying the same compositional layout but changing trivial details that the factfinder views as non-distinguishing

What is the claim’s relationship to utility patent coverage?

Design patents often complement utility patents by covering branded appearance. Utility patents cover:

  • composition of matter
  • methods of use
  • methods of manufacture

Design patents can still matter commercially even when there is no utility overlap, because brand protection and product layout can be a differentiator.


Patent landscape: where to find relevant overlaps

What comparable patent classes tend to overlap with design patents in drug-related markets?

Design patents that sit adjacent to drug commercialization typically fall into these practical categories:

  • packaging appearances (bottles, labels, boxes with consistent ornamentation)
  • device housings (if the drug uses or is packaged with a delivery mechanism)
  • identifiable outer casing or form-factor for a drug product

Overlap risk depends on whether later entities claim ornamental designs of the same article with similar compositional layout.

What types of prior art constrain novelty or obviousness of design patents?

Design patents are examined for:

  • ornamentation novelty against earlier designs
  • whether the claimed design would be obvious over earlier designs for the same article class

In litigation, the main relevance also includes:

  • earlier design patents and publications as comparison points
  • how the overall impression of earlier designs differs from D342,994

Timeline and term considerations

How long does a US design patent last?

For US design patents filed and issued under the modern term rules, design patent term is typically:

  • 15 years from grant for US design patents (subject to application filing date framework)

For any enforceability window analysis, term start is tied to the grant date, not priority date, and requires confirmation against the actual issue date of D342,994.


Enforcement posture: what D342,994 is likely used for

How do design patents in drug-adjacent markets get enforced?

Design patents are often asserted to:

  • stop competitors from using similar product appearance in the marketplace
  • support settlement leverage around packaging or device form-factor
  • strengthen brand differentiation even where functional claims sit in utility patents

What damages and remedies are typical?

Remedies may include:

  • injunctive relief (rarely automatic; depends on case facts)
  • damages under design patent frameworks tied to infringement period and sales

A design patent’s narrow visual scope means damages attach to infringing versions that are visually close enough to drive overall impression similarity.


Actionable landscape workstreams for investors and licensing teams

Workstream 1: Build a “visual impression” family map

Create a matrix with:

  • D342,994 figure set (front, side, top, perspective, etc. as shown in the issued drawings)
  • every later US design patent in the same article category with similar silhouette or element layout
  • every earlier US design patent that predates D342,994 with overlapping ornamentation layout

Workstream 2: Identify design-around-safe feature swaps

Use the D342,994 drawings to tag:

  • silhouette-defining edges and curves
  • ornamentation patterns and where they repeat
  • any visible branding placement within the drawings

Then test market candidates:

  • do they change the silhouette?
  • do they alter ornamentation layout or only trivial details?

Key Takeaways

  • D342,994 is a design patent, so the enforceable scope is the ornamental visual appearance depicted in its drawings, not drug composition or therapeutic method.
  • The claim scope is effectively the overall visual impression of the claimed design. Infringement analysis centers on whether an accused product looks substantially similar in its overall impression.
  • For landscape work, focus on earlier and later design patents and market packaging/device appearances that share the same compositional layout, silhouette, and ornamentation patterns.
  • The fastest design-arounds usually alter silhouette, element placement, or ornamentation layout, not just minor surface details.

FAQs

1) Does US design patent D342,994 protect the drug’s active ingredient?

No. A design patent protects only the ornamental appearance of the article shown in the drawings.

2) How many claims does a typical design patent like D342,994 have?

Design patents typically have a single claim covering the ornamental design “as shown and described” in the patent drawings.

3) What controls infringement for design patents?

The overall visual impression of the patented design compared to the accused design.

4) Can competitors avoid infringement without changing the product function?

Yes. Competitors can often reduce infringement risk by changing the visual features that drive overall impression, even if the product’s function stays the same.

5) Why does the patent drawings set matter so much?

Because the claim scope in a design patent is tied to the depicted ornamental design in those figures; the drawings define what is protected.


References

[1] United States Patent and Trademark Office (USPTO). Design patent claim standards and infringement principles (design patents claim ornamental design as shown in drawings). USPTO Patent Center / relevant design patent examination materials.
[2] Federal Circuit case law on design patent infringement and overall visual impression (governing comparison framework for infringement analysis).

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Drugs Protected by US Patent D342994

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

Foreign Priority and PCT Information for Patent: D342994

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom2015978Jul 15, 1991
United Kingdom2015979Jul 15, 1991

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