Ynsect v. The Controller Of Patents

In the world of patents, a rejection isn't always the final word. Sometimes, the real question isn't whether an invention is novel, but whether the examiner did their homework properly. When a patent application is denied without a thorough comparison to existing technology, the door to justice remains open. This is the story of how one company's persistence in challenging a flawed rejection reshaped the conversation around patent examination standards.

Ynsect, a company working in the insect treatment space, found itself at odds with the Controller of Patents after their patent application for a method of treating insects was rejected. The application concerned a process that, according to Ynsect, produced insects with higher protein content and lower fat content compared to existing methods. The Controller of Patents, however, was not convinced and denied the application, setting the stage for a legal showdown that would test the rigor of patent examination procedures.

Ynsect argued that the Controller's rejection was fundamentally flawed because it failed to conduct a proper analysis of the differences between their invention and the cited prior art. The company emphasized that their method achieved specific, measurable improvements—namely higher protein content and lower fat content—that distinguished it from existing knowledge in the field. On the other side, the Controller stood by the rejection, presumably arguing that the invention lacked an inventive step over what was already known. The legal friction centered on a critical question: had the Controller truly engaged with the technical merits of the invention, or had it issued a rejection without the detailed comparative analysis required by patent law?

The High Court sided with Ynsect. The court found that the Controller had failed to adequately analyze the differences between the subject invention and the cited prior art, particularly with respect to the higher protein content and lower fat content that Ynsect's method achieved. This was not a minor procedural oversight—it went to the heart of the inventive step analysis. The appeal was allowed, and the matter was remanded back to the Controller for fresh consideration, giving Ynsect another chance to have their invention properly evaluated.

For founders and IP professionals, this case delivers a clear message: when a patent application is rejected for lacking an inventive step, the examining authority must conduct a detailed, substantive analysis. This means carefully considering the existing knowledge in the field, the specific features of the subject invention, and how obvious the invention would be to a person skilled in the art. A rejection that glosses over these comparisons is vulnerable to challenge. If your patent application is denied, scrutinize the reasoning—because a thorough examination is not just a procedural nicety, it's a legal requirement.