China Prosecution / English Article
Responding to Inventive-Step Office Actions in Chinese Invention Patent Applications
A practice note on how to read, decompose, and respond to creativity objections during Chinese examination.
Why Inventive-Step Responses Are a Technical Craft
When an applicant receives an office action saying that an invention lacks inventiveness, the first reaction is often anxiety. But an inventive-step response is not a matter of arguing emotionally with the examiner. It is a technical craft: understand the examiner's reasoning, locate the weak point in that reasoning, and rebuild the logic around the actual technical contribution.
In Chinese invention patent examination, the key is to understand the three-step method. The examiner identifies the closest prior art, determines the distinguishing technical features and the actual technical problem solved by the invention, and then asks whether a person skilled in the art would have been motivated to obtain the claimed solution.
Why Inventive-Step Responses Are a Technical Craft: practical detail
For applicants, foreign patent firms, and China prosecution teams, this point should be treated as a working step rather than a slogan. The practical work is to connect the article's idea with three-step inventive-step analysis, closest-prior-art comparison, technical-problem reframing, motivation analysis, and evidence-based amendment strategy. That is what turns a general insight into a repeatable professional service.
The team should record concrete evidence: claim charts, feature comparison tables, prior-art passages, experimental effects, common-knowledge challenges, and fallback claim positions. Without this evidence layer, the method remains only an opinion. With it, the article becomes useful for client communication, internal decision-making, patent drafting, prosecution strategy, and later portfolio review.
A complete application of this section normally ends with a decision: whether to argue, amend, supplement evidence, narrow a feature combination, or prepare a divisional or continuation-style strategy where available. Ma Su's examiner background matters here because the decision is not based only on enthusiasm; it is tested against technical contribution, support in the disclosure, likely examination reasoning, and business value.
Reframe the Actual Technical Problem
Many responses fail because they accept the examiner's definition of the technical problem too quickly. If the problem is defined too broadly, almost any difference can be treated as a routine choice. The applicant must analyze the distinguishing features carefully and explain what specific technical problem they jointly solve.
For example, if two known functions are merely placed together, the examiner may see a simple aggregation. But if the combination avoids a specific damage mode, improves a constrained operating process, or solves a problem that the prior art never recognized, the inventive-step analysis changes.
Reframe the Actual Technical Problem: practical detail
For applicants, foreign patent firms, and China prosecution teams, this point should be treated as a working step rather than a slogan. The practical work is to connect the article's idea with three-step inventive-step analysis, closest-prior-art comparison, technical-problem reframing, motivation analysis, and evidence-based amendment strategy. That is what turns a general insight into a repeatable professional service.
The team should record concrete evidence: claim charts, feature comparison tables, prior-art passages, experimental effects, common-knowledge challenges, and fallback claim positions. Without this evidence layer, the method remains only an opinion. With it, the article becomes useful for client communication, internal decision-making, patent drafting, prosecution strategy, and later portfolio review.
A complete application of this section normally ends with a decision: whether to argue, amend, supplement evidence, narrow a feature combination, or prepare a divisional or continuation-style strategy where available. Ma Su's examiner background matters here because the decision is not based only on enthusiasm; it is tested against technical contribution, support in the disclosure, likely examination reasoning, and business value.
Challenge Common Knowledge and Routine Choice
Examiners sometimes classify a distinguishing feature as common knowledge or a conventional technical means. The applicant should not accept this as a conclusion without evidence. Common knowledge should normally be supported by textbooks, handbooks, or other recognized materials. If the feature is not truly conventional in the relevant technical field, the response should say so clearly.
The stronger argument is not merely 'this is not common knowledge'. It is to explain why the feature plays a specific role in the claimed solution and why that role would not have been expected from ordinary use.
Challenge Common Knowledge and Routine Choice: practical detail
For applicants, foreign patent firms, and China prosecution teams, this point should be treated as a working step rather than a slogan. The practical work is to connect the article's idea with three-step inventive-step analysis, closest-prior-art comparison, technical-problem reframing, motivation analysis, and evidence-based amendment strategy. That is what turns a general insight into a repeatable professional service.
The team should record concrete evidence: claim charts, feature comparison tables, prior-art passages, experimental effects, common-knowledge challenges, and fallback claim positions. Without this evidence layer, the method remains only an opinion. With it, the article becomes useful for client communication, internal decision-making, patent drafting, prosecution strategy, and later portfolio review.
A complete application of this section normally ends with a decision: whether to argue, amend, supplement evidence, narrow a feature combination, or prepare a divisional or continuation-style strategy where available. Ma Su's examiner background matters here because the decision is not based only on enthusiasm; it is tested against technical contribution, support in the disclosure, likely examination reasoning, and business value.
Attack the Alleged Technical Motivation
When the examiner combines multiple references, the response should compare their technical fields, problems, means, and effects. If the references solve different problems, rely on incompatible assumptions, or would create conflict when combined, then the alleged motivation is weak.
A persuasive response shows that the examiner's combination is a hindsight reconstruction. The question is not whether the invention can be assembled after reading the application. The question is whether a skilled person would have had a reason to make that path before seeing the invention.
Attack the Alleged Technical Motivation: practical detail
For applicants, foreign patent firms, and China prosecution teams, this point should be treated as a working step rather than a slogan. The practical work is to connect the article's idea with three-step inventive-step analysis, closest-prior-art comparison, technical-problem reframing, motivation analysis, and evidence-based amendment strategy. That is what turns a general insight into a repeatable professional service.
The team should record concrete evidence: claim charts, feature comparison tables, prior-art passages, experimental effects, common-knowledge challenges, and fallback claim positions. Without this evidence layer, the method remains only an opinion. With it, the article becomes useful for client communication, internal decision-making, patent drafting, prosecution strategy, and later portfolio review.
A complete application of this section normally ends with a decision: whether to argue, amend, supplement evidence, narrow a feature combination, or prepare a divisional or continuation-style strategy where available. Ma Su's examiner background matters here because the decision is not based only on enthusiasm; it is tested against technical contribution, support in the disclosure, likely examination reasoning, and business value.
Use Unexpected Technical Effects and New-Problem Discovery
Unexpected technical effects are powerful. Comparative data, experiments, performance improvements, and stability records can all support inventiveness. If the application disclosed enough basis, these effects should be organized in a clear and quantitative way.
A higher-level argument is that the invention discovered a new technical problem. If the prior art did not recognize the problem at all, then the contribution is not only the solution but also the direction of technical progress. A good response turns examination into a dialogue about how technology actually develops.
Use Unexpected Technical Effects and New-Problem Discovery: practical detail
For applicants, foreign patent firms, and China prosecution teams, this point should be treated as a working step rather than a slogan. The practical work is to connect the article's idea with three-step inventive-step analysis, closest-prior-art comparison, technical-problem reframing, motivation analysis, and evidence-based amendment strategy. That is what turns a general insight into a repeatable professional service.
The team should record concrete evidence: claim charts, feature comparison tables, prior-art passages, experimental effects, common-knowledge challenges, and fallback claim positions. Without this evidence layer, the method remains only an opinion. With it, the article becomes useful for client communication, internal decision-making, patent drafting, prosecution strategy, and later portfolio review.
A complete application of this section normally ends with a decision: whether to argue, amend, supplement evidence, narrow a feature combination, or prepare a divisional or continuation-style strategy where available. Ma Su's examiner background matters here because the decision is not based only on enthusiasm; it is tested against technical contribution, support in the disclosure, likely examination reasoning, and business value.
Original Chinese Essay
发明专利申请必读--创造性审查意见的答复看这一篇就够了
专利创造性答辩实战指南：如何说服审查员你的发明不是“显而易见”？
当你收到审查意见通知书，看到“不具备创造性”这几个字时，是否感到一筹莫展？别急，创造性答辩是一门“技术活”，掌握正确的方法，就能化被动为主动。
一、理解审查员的逻辑：“三步法”是如何运作的？
在开始答辩之前，首先要明白审查员是如何判断创造性的。他们通常采用“三步法”：
第一步：确定最接近的现有技术。 审查员会从现有技术中找出一篇与你的发明最接近的对比文件。
第二步：确定发明的区别特征和发明实际解决的技术问题。 把你的权利要求与最接近的现有技术对比，找出区别在哪里，然后根据这些区别特征，确定你的发明实际解决了什么技术问题。
第三步：判断要求保护的发明对本领域技术人员来说是否显而易见。 这是最关键的一步。审查员会判断，本领域技术人员在面对第二步确定的技术问题时，是否有动机将最接近的现有技术与其他现有技术结合，或者进行改进，从而得到你的发明。
理解了这个逻辑，你就知道答辩的突破口在哪里了。
二、答辩的核心思路：问题认定与启示判断
从“三步法”可以看出，创造性答辩主要围绕两个核心展开：
核心一：审查员对“发明实际解决的技术问题”的认定是否准确？
核心二：现有技术整体上是否存在将区别特征应用到最接近的现有技术中以解决该技术问题的“技术启示”？
如果这两个问题中有一个回答是“否”，那么你的发明就具备创造性。
三、常见答辩策略与技巧
策略一：重新定义“发明实际解决的技术问题”
在认定技术问题时，往往容易陷入“事后诸葛亮”的误区，即根据你的发明内容来反推技术问题，导致问题定位过于宽泛或偏离实际。
案例启示： 在“按摩磨毛牙刷”案例中，如果申请人将发明实际解决的技术问题定义为“使牙刷同时具备按摩和护龈功能”，审查员很容易认为这是将两个已知功能简单叠加，不具备创造性。
但如果申请人能够证明或者阐明，将按摩功能和磨毛功能组合在一起，解决了“如何在按摩时避免损伤牙龈”这一特定技术问题，而现有技术并没有给出这样的教导，那么答辩就可能成功。
答辩技巧： 仔细分析你的区别特征，思考它们共同解决了什么技术问题。这个技术问题应当是具体的、非显而易见的，而不是宽泛的“提供一种改进的XX”。（不断细分领域）
策略二：强调区别特征并非“公知常识”或“常规选择”
审查员有时会将你的区别特征认定为“本领域的公知常识”或“常规技术手段”，从而认为不具备创造性。
答辩技巧： 对于“公知常识”的认定，可以要求审查员提供证据。公知常识通常应当是记载在教科书、工具书等公知文献中的内容，而非审查员的主观判断。如果你能证明该特征并非本领域的常规手段，或者该特征在解决你的技术问题时起到了意想不到的作用，就可以有效反驳。
策略三：证明现有技术不存在结合的“技术启示”
当审查员将你的发明认定为多篇对比文件的简单组合时，你需要证明这些文件之间不存在结合的“技术启示”。
答辩技巧： 分析对比文件各自的技术领域、所要解决的技术问题、技术方案和技术效果。如果它们之间存在“技术鸿沟”，或者结合会导致技术方案无法实施、效果相悖，那么就不存在结合的动机。
例如，在“竹制切菜板”案例中，如果申请人能够证明，虽然竹地板的多层结构可以解决变形问题，但本领域技术人员不会想到将这种结构用于菜板，因为菜板对材料的要求（如食品安全、抗菌防虫）与地板完全不同，那么答辩就具有说服力。
策略四：强调“意想不到的技术效果”
如果你的发明产生了预料不到的技术效果，这是证明创造性的强有力证据。
答辩技巧： 在说明书中或意见陈述中，清晰、定量地描述这种“意想不到”。例如，某种组合物的协同增效作用、某种结构的性能飞跃等。数据、实验报告、对比测试结果都是有力的证据。
策略五：主张“发现新问题”本身具备创造性
这是创造性答辩的“高阶玩法”，也是我们之前讨论的核心观点——发现新问题用新方案解决，是最高层次的创造性。
答辩技巧： 如果审查员认为你的技术方案是“已知手段的常规应用”，你可以反过来强调：在现有技术中，人们根本没有意识到存在你所要解决的那个技术问题。你发现了这个问题本身，就为技术进步指明了方向。
以“按摩磨毛牙刷”为例，如果现有技术中没人意识到“按摩凸块可能会损伤牙龈”这个问题，而你第一个发现了它，并提出了“磨毛”的解决方案，那么你的贡献不仅仅是“1+1=2”，而是开创了一个新的技术方向。这种“发现问题”的贡献，本身就是创造性的体现。
四、答辩实战：一个完整的逻辑框架
当你在撰写意见陈述书时，可以按照以下框架组织你的答辩理由：
第一段：概括陈述。 简要说明审查意见的主要内容，以及你的答辩结论（例如：经过仔细分析，申请人认为修改后的权利要求具备创造性）。
第二段：重新认定技术问题。 针对审查员认定的“发明实际解决的技术问题”进行分析，提出你认为更准确的技术问题，并说明理由。
第三段：分析区别特征。 详细阐述你的权利要求与最接近现有技术的区别特征，并分析这些特征在解决上述技术问题中的作用。
第四段：论证非显而易见性。 这是主体部分。逐条反驳审查员关于“技术启示”的认定。可以从以下几个方面展开：
· 对比文件的技术领域不同，不存在结合的基础
· 对比文件所要解决的技术问题不同，没有结合的动机（只要定语足够长）
· 对比文件给出的教导是相反的，结合会导致技术障碍
· 区别特征不是公知常识，审查员未能举证
· 你的发明产生了意想不到的技术效果
第五段：总结陈述。 重申你的发明具备创造性，请求审查员重新考虑，并授权。
创造性答辩的本质
创造性答辩，不是简单的“我说我有理，你说你有理”的争论，而是关于技术发展逻辑的对话。
审查员的职责是防止将“显而易见”的技术授予专利；而申请人的责任是向审查员讲清楚：我的发明，对于本领域技术人员而言，不是“显然”就能想到的。
如果你的发明开辟了新方向，解决了新问题，或者用非显而易见的方式解决了老问题，就大胆地、有理有据地去争取它应有的权利。因为，每一次成功的创造性答辩，都是对创新精神的保护。
多学习逻辑学才能更好的做好答复.