Introduction to Patent

Difference Between Patent and Journal Publication

While both are essential to research, they serve different primary goals and audiences:

Core Purpose of Patent and Publication

The primary goal of a publication is to disseminate scientific knowledge and understanding to the academic community. In contrast, a patent is designed to protect an invention, giving the owner the legal right to exclude others from making, using, or selling it for a fixed period, typically 20 years.

Disclosure Requirements of Patent and Publication

Patents require sufficient disclosure so that someone "skilled in the art" can reproduce the invention. Journal publications aim for scientific clarity and explanation of mechanisms but have no such legal requirement for reproducibility.

Writing Styles of Patent and Publication

Patent documents often use longer, more complex sentences and focus on application details. Publications are more result-oriented and focus on theoretical frameworks and mechanisms.

Audience of Patent and Publication

Journals target the academic community, whereas patents are written for industry, investors, and institution.

Structure of Patent Document (Patent Anatomy)

Modern patent documents are highly standardized to ensure global legibility and comprehensibility. The structure typically includes the following core elements:

Bibliographical Information

Found on the front page, this provides a snapshot of the invention, including the title, patent number, filing and issue dates, names of inventors, the current patent holder (assignee), and cited prior art

Background and Field of the Invention

The "Field" identifies the general industry the invention belongs to, while the "Background" describes the specific technical problem being solved and the limitations of existing solutions (prior art).

Summary of The Invention

A high-level, neutral overview of the invention's purpose and core benefits. It avoids technical specifics or "marketing" language to maintain credibility and avoid limiting the patent's legal scope.

Brief Description of the Figures

A concise section that introduces the drawings using standardized terms like "top view," "side view," or "cross-sectional view" to help readers orient themselves.

Detailed Description

A comprehensive explanation of how the invention works, providing enough information for someone skilled in the field to recreate it. This section often includes different embodiments (alternative versions) and experimental data to support the invention's effectiveness.

Patent Claims

The most critical part of the document, the claims define the legal boundaries of the protection. They outline exactly what others are prohibited from doing without permission.

Drawings/Figures

Visual representations, such as line drawings, sectional diagrams, or flowcharts, that illustrate how the invention is constructed and functions.

Abstract

A short summary designed to help readers quickly determine the subject matter of the patent.

How to Search Patent

Searching patents prevents "reinventing the wheel." It also ensures you do not infringe on existing rights. Let say for this case, I will try to use specific my research topic to looking for patent about "advanced separators for metal-air batteries"

1. Select a Database: Use Google Patents or Espacenet (EPO).

2. Define Keywords: Use terms like "battery separator," "nanofiber," and "membrane"

3. Use Classification Codes: Search using Cooperative Patent Classification (CPC) codes. For example, H01M50/40 covers separators for primary or secondary batteries.

4. Filter by Date: Look for patents filed in the last 5 years to see current trends.

Patent Abstract

A patent abstract must be a concise, 50–150 word technical summary of the invention's disclosure, focusing on the technical field, the problem solved, and the solution. It should be written in a single paragraph, formatted on a separate page, and avoid marketing language, excessive detail, and phrases like "the present invention relates to".

Key Tips for Drafting Patent Abstracts:

• Length & Format: Keep the abstract ideally between 50 and 150 words (maximum 250 in some jurisdictions). It must be a single paragraph.

• Content Focus: Summarize the technical features, the problem being addressed, and the core solution.

• Drafting Technique: Draft the abstract last, after the claims are finalized, by summarizing the broadest claim in a narrative format.

• Drafting Inclusions: Mention the primary use of the invention. If drawings are present, include reference numbers in parentheses for main features, e.g., "a lever (12) connected to a base (14)".

What to Avoid:

• No Marketing Language: Do not include statements about the alleged merits, value, or advantages of the invention.

• No Redundancy: Avoid introductory phrases such as "This invention relates to...".

• No Legal Jargon: Avoid using claim-specific terms like "said" or "means".

• Finalization: The abstract is usually a separate page in the application.

Example: Convert one of my publication into patent, trying to make its abstract first

Provided is an electrospun battery separator comprising a cross-linked blend of poly(vinyl alcohol) (PVA) and alginate (Alg). The separator is formed as a nanofiber mat with a porosity of approximately 72.4% to 83.6%, exposing carboxylate salt functional groups (-COONa) that serve as lithiophilic sites. These functional groups facilitate uniform lithium-ion flux and inhibit the formation of lithium dendrites. The separator exhibits thermal stability characterized by zero dimensional shrinkage at temperatures up to 180°C and provides an ionic conductivity of approximately 5.97 mS cm⁻¹. Application of the separator in a lithium-ion battery enables stable lithium plating and stripping for at least 1000 hours and maintains high capacity retention in lithium iron phosphate (LFP) cells.