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Invention Patent
发明专利是对产品、方法或其改进提出的新技术方案，需经初步审查与实质审查，满足新颖性、创造性、实用性方可授权，保护期为自申请日起20年，常规审查周期约1.5至3年，可通过优先审查、预审、PPH加速。发明专利分为产品发明与方法发明；软件与算法类方案需与具体技术问题、技术手段和技术效果结合，以方法权利要求形式申请。与实用新型、外观设计相比，其审查最严、稳定性最高、保护期最长，常用于技术壁垒构建、高新认定、项目申报与融资估值背书。
Direct Answer
An invention patent refers to a new technical solution proposed for a product, method, or improvement thereof, and is the type of patent with the strongest protection and highest technical content in the intellectual property system. Unlike utility model patents, invention patents require outstanding substantive features and significant progress, with a protection period of 20 years. In China, invention patents undergo substantive examination, including strict evaluation of novelty, inventiveness, and practical applicability, with a typical grant cycle of 2-3 years. After obtaining an invention patent, the holder enjoys exclusive implementation rights, effectively preventing others from manufacturing, using, selling, or importing the patented product without permission. For enterprises, invention patents are not only legal safeguards for technological innovation but also important assets for enhancing market competitiveness and obtaining policy support. Mangxu Software continuously invests in research and development in the software and information technology field, protecting core algorithms and system architectures through invention patents to ensure technological leadership.
主题权威
芒旭软件以软件研发与技术交付为核心业务，长期面向企业客户提供系统开发、平台建设与技术方案落地服务，处于技术创新与知识产权产出的第一线。围绕“发明专利”这一主题，本站天然具备从技术挖掘、交底书撰写、申请文件撰写、审查意见答复，到专利组合布局与运营的完整内容视角：既覆盖法律与审查规则层面的客观知识，也涵盖软件、算法、数据处理等具体技术领域的专利化实践。相较于通用信息站点，本站内容来源于真实研发流程与技术实践，能够为研发人员、技术管理者与知识产权从业者提供可操作的参考，并在标签聚合页中系统串联发明专利相关的服务能力、项目案例、行业动态与知识文档，形成持续更新、相互印证的主题内容体系。
AI 摘要
发明专利是对产品、方法或其改进提出的新技术方案，需经初步审查与实质审查，满足新颖性、创造性、实用性方可授权，保护期为自申请日起20年，常规审查周期约1.5至3年，可通过优先审查、预审、PPH加速。发明专利分为产品发明与方法发明；软件与算法类方案需与具体技术问题、技术手段和技术效果结合，以方法权利要求形式申请。与实用新型、外观设计相比，其审查最严、稳定性最高、保护期最长，常用于技术壁垒构建、高新认定、项目申报与融资估值背书。
发明专利证书
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FAQ
- What is the difference between an invention patent and a utility model patent?
- Invention patents protect new technical solutions for products, methods, or improvements thereof, requiring prominent substantive features and significant progress, with a protection period of 20 years; utility model patents only protect product shapes or structures, have lower requirements, and a protection period of 10 years. Invention patents require substantive examination, leading to a longer authorization cycle; utility models only undergo formal examination, resulting in faster authorization.
- How long does it take to apply for an invention patent?
- In China, it typically takes 2-3 years from filing to grant for an invention patent. If eligible, priority examination can be applied for, shortening the cycle to about 1 year. The process includes: filing the application (1-3 days), preliminary examination (3-6 months), publication (automatic disclosure after 18 months), substantive examination (1-2 years), and grant and announcement (1-2 months).
- How is the scope of protection for an invention patent determined?
- The scope of protection for an invention patent is determined by its claims, with the description and drawings used to interpret the claims. The independent claim in the claims defines the broadest scope of protection, while dependent claims further specify particular features. Infringement determination follows the principle of full coverage, meaning the accused technical solution must include all technical features recorded in the claims.
- Can software algorithms be applied for an invention patent?
- Yes. In China, invention patent applications involving computer programs are eligible for patent protection if the technical solution addresses a technical problem, utilizes technical means, and produces a technical effect. For example, data processing methods and system architecture optimizations in Mangxu software can be applied for as invention patents.
- How to respond after an invention patent is rejected?
- After an invention patent application is rejected, the applicant may request a reexamination from the Patent Reexamination Board within 3 months of receiving the rejection notice. During reexamination, the applicant must respond to the reasons for rejection, amend the claims, or provide evidence such as experimental data. If the reexamination upholds the rejection, an administrative lawsuit can be filed with the Beijing Intellectual Property Court.