Can photographs be used in PCT applications instead of drawings?
While the PCT does not explicitly provide for photographs, they may be allowed in exceptional circumstances. According to MPEP 1825:
“The PCT makes no provision for photographs. Nevertheless, they are allowed by the International Bureau where it is impossible to present in a drawing what is to be shown (for instance, crystalline structures).”
If photographs are submitted, they must meet specific requirements:
- They must be on A4 size sheets
- They must be black and white
- They must respect the minimum margins
- They must admit of direct reproduction
It’s important to note that “Color photographs are not accepted.” Applicants should only use photographs when it is truly impossible to present the information in a traditional drawing format.
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