Why 'a plurality of N' must be used for 'N' in patent claims

Because patents are written to be legal documents, not engineering documents. Legal documents are written using traditions that have evolved over hundreds of years. Since patent examiners, lawyers, and judges all expect patents to be written in a certain way, if you submit an application that isn't written that way, you're just wasting money.

Hi Robert, It is interesting to note that the styles for patent writing are changing with time.

In old patents, 'said' was used for 'the'.

Now I found in more patents approved in 2005, they only use 'the', never use 'said'.

It is very often now that a full sentence usually follows the 'wherein', instead of many separate words followed by descriptive words.

Thank you.

Weng

Again, that is what i call "patent-ese". Instead of "many" or "multiple" one sees "a plurality of". Like i said, follow the terminology and useage that you find in other patents that are closely related to your particular idea.

Legalese is designed to keep lawyers employed. It is not, by itself, "precise". Contracts and other legal documents written in "plain English" are just as enforceable as the legalese version. Maybe even more so, because a jury (non-lawyers) can understand them.

MOOYMMV.

Tom Seim

Legalese is a very precise language, quite comparable to computer languages. If you ever see "...time is of the essence..." in a contract, prepare to run.

Perhaps, but the question pertains to terminology in patents.

You are forgetting that, by the very nature of the beast, Patents are designed to be as general as possible without seeming to digress onto other topics... like this thread.

Sim>

languages.

run.