What are the reasons why the patent is invalid? How to avoid it?

According to paragraph 2 of Article 65 of the Detailed Rules for the Implementation of the Patent Law, the reason for the request for invalidation means that the invention-creation granted a patent does not conform to the provisions of Article 2, Paragraph 1 of Article 20, Article 22, Article 23, Paragraph 3, Paragraph 4 of Article 26, Paragraph 2 of Article 27, Article 33, Paragraph 2 of Article 20 and Paragraph 1 of Article 43 of the Detailed Rules for the Implementation of the Patent Law, or belongs to the provisions of Article 5 and Article 25 of the Patent Law.

Help you summarize:

(1) Law 2- Definition of invention, utility model and design;

(2) Paragraph 1 of Article 20 of the Law-where an invention-creation made in China applies for a patent in a foreign country, it shall be subject to confidentiality review;

(3) Law No.22-Provisions on novelty, creativity and practicality; Article 23 of the law-provisions on design authorization conditions;

(4) Paragraph 3 of Article 26 of the Law-requirements for clarity, completeness and realization of instructions; Article 26 (4) of the Law-clear, concise and limited provisions on the basis of claim;

⑤ Article 27, paragraph 2, of the Law —— The provision that a picture or photograph clearly shows the required design; Article 33 of the law-modify the clauses beyond the scope;

6. Paragraph 2 of Article 20-The independent claim shall reflect the developed and practical technical scheme as a whole, and record the necessary technical features;

⑦ Paragraph 1 of Article 43-A divisional application may enjoy priority, but it shall not exceed the scope recorded in the original application;

(8) Cases falling within the scope of Article 5 of the Law-violation of laws and genetic resources;

Pet-name ruby belongs to article 25 of the law-six kinds of unauthorized situations;

Attending the situation of Article 9 of this Law-the same invention-creation can only be granted a patent right, which is granted to the person who applies first.