In a decision closed March 28, 2024, the Canadian Intellectual Property Office (CIPO) Patent Appeal Board refused patent application CA2814276A1, filed by applicant Yanjun YC Che, directed to a technology described as “The Extraction of Gravitational Field Energy.” The Commissioner of Patents, concurring fully with the Board’s recommendation, refused to grant the patent under section 40 of the Patent Act, citing multiple substantive and formal defects across Claims 1–31.

While the application cleared novelty and non-obviousness hurdles — a noteworthy result in itself — it ultimately failed on utility, sufficiency of disclosure, claim indefiniteness, and a formal claims rule violation. The case offers a compelling study in how an application can survive the prior art analysis yet collapse under foundational patentability requirements.

For patent prosecutors, IP professionals, and R&D teams operating in emerging or speculative technology fields, this decision carries important lessons about what Canadian patent law demands before a patent will be granted — regardless of how novel or non-obvious an invention appears.

Case Overview

The Applicant

The Patent Application at Issue

The application, CA2814276A1, is directed to “The Extraction of Gravitational Field Energy,” covering Claims 1–31 for an apparatus or method related to harnessing or extracting energy from gravitational fields. The subject matter places this application within a category of speculative or unconventional energy technologies. Such applications face heightened scrutiny under Canadian utility requirements, as the demonstrated or soundly predicted utility of the claimed invention must be clearly established in the disclosure as filed.

• • CA2814276A1 — The Extraction of Gravitational Field Energy

Procedural Posture

The case was examined and reviewed before the CIPO Patent Appeal Board, which constitutes an administrative review mechanism within the Canadian patent prosecution system — distinct from Federal Court litigation. The Board panel consisted of Members Stephen MacNeil, Liang Ji, and Beatrice Sze. The Commissioner of Patents adopted the Board’s recommendation in full.

No defendant, opposing party, or adversarial law firm is identified in this proceeding, as this is a prosecution/patentability matter rather than an inter partes dispute.

The Verdict & Legal Analysis

Outcome

The Commissioner of Patents refused to grant a patent on application CA2814276A1. The refusal was grounded in four independent bases, any one of which would be sufficient to justify rejection under Canadian patent law.

Verdict Cause Analysis

1. Lack of Utility — Section 2, Patent Act

All Claims 1–31 were found to lack utility, the most fundamental ground for refusal. Under Canadian patent law, an invention must be useful — either demonstrated through working examples or soundly predicted based on disclosed information and established scientific reasoning. For unconventional technologies such as gravitational field energy extraction, the evidentiary bar for sound prediction is particularly demanding. The Board found the application failed to meet this standard across every claim on file.

This finding alone is dispositive. Utility is a threshold requirement under the definition of “invention” in section 2 of the Patent Act. No amount of novelty or non-obviousness can cure a utility deficiency.

2. Insufficient Disclosure — Subsection 27(3), Patent Act

The application was found insufficient, meaning the specification failed to describe the invention in a manner that enables a person skilled in the art to make and use it. Sufficiency of disclosure — analogous to the enablement requirement under U.S. patent law — requires that the specification provide enough technical detail for skilled practitioners to reproduce the claimed invention without undue experimentation.

For speculative energy technologies, insufficiency frequently accompanies utility failures: if the underlying operating principle is not scientifically established, the disclosure typically cannot adequately teach how the invention works in practice.

3. Indefinite Claims — Subsection 27(4), Patent Act

A substantial subset of claims — specifically Claims 2–4, 7, 9–11, 14, 17, 22, 23, 25, 27, 29, 30, and 31 — were found indefinite. Subsection 27(4) requires that claims define distinctly and in explicit terms the subject matter for which an exclusive privilege or property is claimed. Indefinite claim language creates uncertainty about claim scope, which undermines the public notice function of patent claims and is independently fatal to patentability.

4. Non-Compliance with Patent Rules — Paragraph 13(1)(c), Patent Rules

Claim 21 was found non-compliant with paragraph 13(1)(c) of the Patent Rules, a formal defect relating to proper claim formatting or dependency structure requirements.

Notably: Novelty and Non-Obviousness Survived

In a finding that merits attention, the Board concluded that Claims 1–31 are novel and would not have been obvious to the person skilled in the art. The claims were also found to have unity and adequate support in the description. This split outcome — passing prior art analysis but failing utility and sufficiency — is instructive for patent prosecutors and applicants working in frontier technology areas.

Proposed Claims Did Not Save the Application

The applicant proposed amended claims during the proceedings; however, the Board determined these proposed claims would not overcome all outstanding defects and therefore did not qualify as “necessary” amendments under subsection 86(11) of the Patent Rules. This prevented the amendments from being entered into the record as a compliance mechanism.