Patent Illustration Requirements

Patent Illustration Requirements- Creating an illustration for patents is a completely different affair as it involves strict compliance with the patent regulatory norms of the intended jurisdiction. Unlike other forms of illustration, here, the draftsperson needs to have a complete understanding of the subject matter as well as the patent illustration rules set forth by the respective patent office.

Irrespective of the fact whether you are intending to file a utility patent or a design patent, a patent illustration can improve the likelihood of patent approval. Thus it is important for applicants to create their illustration with utmost care and precision.  Patent Illustration Requirements

Some common benefits of patent illustration

  • Makes the idea easy to be comprehended
  • Enables the patent attorney to describe how to make the invention step by step
  • It is always better to be safe than sorry
  • Helps grab the attention of the prospective licensee
  • Helps make points while litigating with infringers

Since patent illustration is a structured and legal document it has got some special requirements those should be fulfilled by the applicant, with this article, we came up with those requirements which are sought by a patent office more than often. Understanding these special requirements for patent illustration we can increase the chances of getting our application approved manifold.

Thus, with this article, we came up with enlisting those patent illustration requirements so that applicants can save plenty of their precious time and resources. Without much ado let’s list those requirements.

  • Illustration shall be executed in durable, black, sufficiently dense and dark, uniformly thick and well-defined, lines and strokes without colorings. Patent Illustration Requirements
  • Cross-sections shall be indicated by oblique hatching which should not impede the clear reading of the reference signs and leading lines.
  • The scale of the illustration and the distinctness of their graphical execution shall be such that a photographic reproduction with a linear reduction in size to two-thirds would enable all details to be distinguished without difficulty.
  • When, in exceptional cases, the scale is given on an illustration, it shall be represented graphically.
  • All numbers, letters and reference lines, appearing on the illustration, shall be simple and clear. Brackets, circles or inverted commas shall not be used in association with numbers and letters.
  • All lines in the illustration shall, ordinarily, be drawn with the aid of drafting instruments.
  • Each element of each figure shall be in proper proportion to each of the other elements in the figure, except where the use of a different proportion is indispensable for the clarity of the figure.
  • The height of the numbers and letters shall not be less than 0.32 cm. For the lettering of illustration, the Latin and, where customary, the Greek alphabets shall be used. Patent Illustration Requirements
  • The same sheet of illustration may contain several figures. Where figures on two or more sheets form in effect a single complete figure, the figures on the several sheets shall be so arranged that the complete figure can be assembled without concealing any part of any of the figures appearing on the various sheets.
  • The different figures shall be arranged on a sheet or sheets without wasting space, preferably in an upright position, clearly separated from one another. Where the figures are not arranged in an upright position, they shall be presented sideways with the top of the figures on the left side of the sheet.
  • The different figures shall be numbered in Arabic numerals consecutively and independently of the numbering of the sheets.
  • Reference signs not mentioned in the description shall not appear in the illustration, and vice versa.
  • The same features, when denoted by reference signs, shall, throughout the international application, be denoted by the same signs.
  • If the illustration contains a large number of reference signs, it is strongly recommended to attach a separate sheet listing all reference signs and the features denoted by them.      Patent Illustration Requirements

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