Patent evaluation and determination method, patent evaluation and determination device, and patent evaluation and determination program

A patent evaluation and determination method comprising:

• an invention input step of receiving an input of an invention sentence relating to an invention;
• a keyword extraction step of performing a syntactic analysis on the input invention sentence in units of words, and then extracting any search keyword in the invention sentence;
• a patent sentence group extraction step of extracting a patent sentence group in which the search keyword is contained from a database using the extracted search keyword;
• and
• a determination step of comparing the invention sentence and a sentence included in the patent sentence group and determining patentability of the invention sentence,
• wherein the determination step includes determining the patentability of the invention sentence on a basis of a result obtained by multiplying a reciprocal number of an edit distance of the sentence included in the patent sentence group by a length index of the invention sentence and a content rate of the search keyword.

A patent evaluation and determination device comprising:

• an invention input unit that receives an input of an invention sentence relating to an invention;
• a keyword extraction unit that performs a syntactic analysis on the input invention sentence in units of words, and then extracts any search keyword in the invention sentence;
• a patent sentence group extraction unit that extracts a patent sentence group in which the search keyword is contained from a database using the extracted search keyword;
• and
• a determination unit that compares the invention sentence and a sentence included in the patent sentence group and determines patentability of the invention sentence,
• wherein the determination unit determines the patentability of the invention sentence on a basis of a result obtained by multiplying a reciprocal number of an edit distance of the sentence included in the patent sentence group by a length index of the invention sentence and a content rate of the search keyword.

A patent evaluation and determination program causing a computer to realize:

• an invention input function of receiving an input of an invention sentence relating to an invention;
• a keyword extraction function of performing a syntactic analysis on the input invention sentence in units of words, and then extracting any search keyword in the invention sentence;
• a patent sentence group extraction function of extracting a patent sentence group in which the search keyword is contained from a database using the extracted search keyword;
• and
• a determination function of comparing the invention sentence and a sentence included in the patent sentence group and determining patentability of the invention sentence,
• wherein the determination function includes determining the patentability of the invention sentence on a basis of a result obtained by multiplying a reciprocal number of an edit distance of the sentence included in the patent sentence group by a length index of the invention sentence and a content rate of the search keyword.