美国专利申请说明书与中国专利申请说明书撰写有何不同？

有谁知道美国专利申请说明书与中国专利申请说明书撰写有何不同？谢谢

It seems that this question is too big to be discussed here.  I can only list some of quick answers, in order to start discussions.  

1. No limitations of independent claims in the U.S. patent application.  For example, you can write 5 independent method claims, 5 apparatus and 3 system independent claims in one application.  In other words, you should have more imaginations when drafting a U.S. application to obtain a broad protection.  

2. Background Part: many people say this part is difficult to write in a U.S. patent application.  One of the reasons is that you should not write too specifically, restricting yourself.  Many U.S. attorneys don\'t like to give specific patent numbers in this part, because they may narrow the application in future.

3. Of course, the language difference.   No matter you write the application directly in English or use an English translation, be careful of terms or words you used in specification and claims.  Think about how English speaking people would consider the meanings of these terms or words.  This part is self-explanatory and has no easy solution.  Sometimes, you even need to notice the culture differences.  For example, a popular daily- used product in Chinese market may not be fully understood by American customers.  It is always a good idea to read several English prior art before you draft a U.S. patent application.

美国专利的说明书附图放说明书前面，这算一条吧

cress_huang wrote:
有谁知道美国专利申请说明书与中国专利申请说明书撰写有何不同？谢谢

我在国内写了十多年专利申请，在美国也写了N年了，深知区别太大了，不是几句话能说清楚的。一点区别是，中国专利申请文件在格式（或形式）上要求更严格（在一定程度上与审查员的要求有关），而美国专利申请文件格式比较灵活。

Well, the limitations are not in the numbers, but in the cost. For each additional independent claim over three, there is a charge of $220 per claim. Also, if there are too many independent claims in one category, e.g. method, the patent office might assert that the application contains more than one inventions and requires the applicant to elect only one invention for examination and cancel the rest.  The fees paid on the canceled claims will not be refunded.

Also, the USPTO absolutely hates multiple dependent claims. For each multiple dependent claim there is a charge of $390. Therefore, writing multiple dependent claims should be avoided.   

中美专利 wrote:
It seems that this question is too big to be discussed here.  I can only list some of quick answers, in order to start discussions.  

1. No limitations of independent claims in the U.S. patent application.  For example, you can write 5 independent method claims, 5 apparatus and 3 system independent claims in one application.  In other words, you should have more imaginations when drafting a U.S. application to obtain a broad protection.  

远航 wrote:
Well, the limitations are not in the numbers, but in the cost. For each additional independent claim over three, there is a charge of $220 per claim. Also, if there are too many independent claims in one category, e.g. method, the patent office might assert that the application contains more than one inventions and requires the applicant to elect only one invention for examination and cancel the rest.  The fees paid on the canceled claims will not be refunded.

Also, the USPTO absolutely hates multiple dependent claims. For each multiple dependent claim there is a charge of $390. Therefore, writing multiple dependent claims should be avoided.   

由多项从属权利要求引起的附加费是固定的（大企业为390美元，小企业或个人为195美元），不管一件申请里有一个还是多个多项从属权利要求。

temp wrote:
由多项从属权利要求引起的附加费是固定的（大企业为390美元，小企业或个人为195美元），不管一件申请里有一个还是多个多项从属权利要求。

谢谢澄清。看了一下有关资料，实际过程是这样的，如不对请更正：

1. 先用PTO/SB/07表计算权利要求的总数，每个多项从属权利要求按重数计算，全部加起来即为权利要求的总数，超过20个按37 CFR 1.16 缴费，
2. 如果申请经过修改以后仍然有多项从属权利要求，则不管多少个都另交$390/$195的附加费。

这第二项费交得冤枉，不是吗？