Class: Patento::Document

Inherits:
Object
  • Object
show all
Defined in:
lib/patento/document.rb

Direct Known Subclasses

Patent, Publication

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(number, options = {}) ⇒ Document

Note: attributes are lazily evaluated



7
8
9
10
11
12
13
14
 
# File 'lib/patento/document.rb', line 7

def initialize(number, options = {})
  @number = number.to_s
      if options[:local_path]
@html = Nokogiri::HTML(File.read(options[:local_path]))
      else
    @html = Nokogiri::HTML(Patento.download_html(number))
      end
end

Instance Attribute Details

#html ⇒ Object

Returns the value of attribute html.



4
5
6
 
# File 'lib/patento/document.rb', line 4

def html
  @html
end

#number ⇒ Object

Returns the value of attribute number.



4
5
6
 
# File 'lib/patento/document.rb', line 4

def number
  @number
end

Instance Method Details

#abstract ⇒ Object 



22
23
24
 
# File 'lib/patento/document.rb', line 22

def abstract
  @abstract ||= @html.css('.patent_abstract_text').text
end

#assignee ⇒ Object 



30
31
32
 
# File 'lib/patento/document.rb', line 30

def assignee
  @assignee ||= parse_bibdata_links_for_url_match('q=inassignee:')
end

#claims ⇒ Object 



42
43
44
 
# File 'lib/patento/document.rb', line 42

def claims
  @claims ||= Claim.parse_claims(@html)
end

#filing_date ⇒ Object 



38
39
40
 
# File 'lib/patento/document.rb', line 38

def filing_date
  @filing_date ||= parse_date(:filing)
end

#forward_citations ⇒ Object 



46
47
48
 
# File 'lib/patento/document.rb', line 46

def forward_citations
  @forward_citations ||= parse_citations(:forward)
end

#independent_claims ⇒ Object 



50
51
52
53
54
55
56
57
58
 
# File 'lib/patento/document.rb', line 50

def independent_claims
  independent_claims = []
  claims.each do |c| 
    if c[:type] == :independent 
      independent_claims << c 
    end
  end
  return independent_claims
end

#inventors ⇒ Object 



26
27
28
 
# File 'lib/patento/document.rb', line 26

def inventors
  @inventors ||= parse_bibdata_links_for_url_match('q=ininventor:')
end

#parse_bibdata_links_for_url_match(pattern) ⇒ Object 



86
87
88
89
90
91
92
 
# File 'lib/patento/document.rb', line 86

def parse_bibdata_links_for_url_match(pattern)
  @matches = @html.css('#summarytable div.patent_bibdata a').to_a
  @matches.collect! { |link| link.text if link.attr('href').match(pattern) }     
  @matches.compact!
  @matches = @matches.first if @matches.count == 1
  return @matches
end

#parse_citations(type) ⇒ Object

Helpers



62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
 
# File 'lib/patento/document.rb', line 62

def parse_citations(type)
  container = (type == :backward ? '#patent_citations_v tr' : '#patent_referenced_by_v tr')
  trs = @html.css(container)
  trs.shift
  citations = []
  trs.each do |row|
    citations << {
      number: row.css('td')[0].css('a').text.gsub(/^US/, ''),
      filing: Date.parse(row.css('td')[1].text),
      issue: Date.parse(row.css('td')[2].text),
      assignee: row.css('td')[3].text,
      title: row.css('td')[4].text
    }
  end        
  return citations
end

#parse_date(type) ⇒ Object 



80
81
82
83
84
 
# File 'lib/patento/document.rb', line 80

def parse_date(type)
  nodes = @html.css('#metadata_v .patent_bibdata p').children
  index = (type == :filing ? 4 : 7)
  Date.parse(nodes[index].text)
end

#title ⇒ Object

Attributes



18
19
20
 
# File 'lib/patento/document.rb', line 18

def title
  @title ||= @html.css('.main-title').text.split(' - ')[1]
end

#us_classifications ⇒ Object 



34
35
36
 
# File 'lib/patento/document.rb', line 34

def us_classifications
  @us_classifications ||= parse_bibdata_links_for_url_match('q=http://www.uspto.gov/web/patents/classification/')
end