Basic Analysis EPO Patents by Country

1
Basic Analysis- EPO Patents by Country
Basic Bibliographic Analysis

• Top 20 nanotechnology patent assignee countries
  in EPO (title-abstract search) and their
  patents by year, 1978-2004 (log scale)

2
Basic Analysis- USPTO Patents by Country Group
Basic Bibliographic Analysis

• Assignee country group analysis by year,
  1976-2004 (title-abstract search) (log scale)

3
Basic Analysis- EPO Patents by Country Group
Basic Bibliographic Analysis

• Assignee country group analysis by year,
  1978-2004 (title-abstract search) (log scale)

4
Content Map Analysis (USPTO)
Content Map Analysis

• USPTO Content Map (1976-1989) (title-abstract
  search)

5
Content Map Analysis (USPTO)
Content Map Analysis
4.18 5.39 6.03 6.51 6.93 7.33
7.75 8.23 8.86 9.32 10.07
NEW

REGION
-0.80 0.41 1.05 1.53 1.95 2.35
2.77 3.25 3.88 4.34 5.09
NEW

REGION

• USPTO Content Map (1990-1999) (title-abstract
  search)

• USPTO Content Map (2000-2004) (title-abstract
  search)

6
Findings Content Map (USPTO)
Content Map Analysis

• From 1976 to 1989, the major research topics of
  USPTO nanotechnology patents included carbon
  atoms, optical fibers, and thin films.
• From 1990 to 1999, several new research topics
  appeared from 1990 to 1999, including aqueous
  solutions, composite materials, laser beams,
  nucleic acids, optical waveguide, organic
  colvents, reverse osmosis, self-assembled
  monolayer, semiconductor substrate, silicon
  carbide, and substrate surfaces.
• From 2000 to 2004, the numbers of patents related
  to several topics had increased significantly,
  such as aqueous solutions, composite
  materials, carbon nanotubes, nucleic acids,
  self-assembled monolayer, and thin films.
  Some new topics also became major research topics
  in this time period, such as atomic force
  microscope, clay materials, dielectric
  layers, nanocomposite materials, naphtha
  stream, polymeric materials, and
  semiconductor devices.

7
Citation Network Analysis- USPTO Countries
Citation Network Analysis
8
Citation Network Analysis- EPO Countries
Citation Network Analysis
9
Findings Country Citation Network
Citation Network Analysis

• In the USPTO dataset, the United States is the
  most significant citation center on the network.
  Japan, Republic of Korea, the United Kingdom,
  China (Taiwan) and Germany are the secondary
  citation centers and constructed a cluster with
  close citations.
• In the EPO dataset, the United States, France,
  Japan, Germany, and the United Kingdom are large
  citation centers and construct a citation cluster
  on the network.
• In both repositories, the countries have close
  citation relationships. In EPO most assignee
  countries have more than one citing/cited
  country. In USPTO several countries only have
  citation relationship with the United States.
  Many of the countries that only had citations
  with the United States were relatively new in the
  nanotechnology domain.

10
Thomson SCI Literature Analysis
11
Research Methodology (cont.)
Research Methodology

• Use content maps to study the active research
  topics and their relations in different time
  spans.
• Technology topics are extracted from the papers
  abstracts using the Arizona Noun Phraser (Tolle
  and Chen, 2000). The topics are organized by the
  multi-level self-organization map algorithm (Chen
  et al., 1996 Ong et al., 2005), which positions
  similar topics closer together according to their
  co-occurrence patterns.

12
Research Methodology (cont.)
Research Methodology

• Use citation network analysis to study knowledge
  spillover patterns between countries/regions and
  between institutions.
• Using network topological measures to infer the
  global characteristics of knowledge spillover in
  the nanotechnology field (Li et al.,
  forthcoming).
• Visualize the core citation network and identify
  the important patterns in the network
• citations.

13
Data Thomson SCI Nanotechnology Papers, 1976-2004
Dataset

• Paper collections
• 213,847 papers
• 120,687 first authors
• 24,468 institutions
• 4,175 journals/conferences
• 156 countries/regions
• The identifiers of the papers that cited or were
  cited by the nanotechnology papers are also
  retrieved.

14
Bibliographic Analysis
I. Bibliographic Analysis
15
Papers by Country/Region
I. Bibliographic Analysis

• Top 20 countries/regions based on number of
  papers published from 1976 to 2004 (log scale)

16
Papers by Country/Region (cont.)
I. Bibliographic Analysis

• Top countries/regions (without USA) based on
  number of papers published from 1976 to 2004
  (normal scale)

17
Papers by Institution
I. Bibliographic Analysis

• Top 20 institutions based on number of papers
  published from 1976 to 2004 (normal scale)

18
Data Productive Countries
Dataset

• Top 20 countries/regions based on number of
  papers published from 1976 to 2004

19
Data Productive Institutions
Dataset

• Top 20 institutions based on number of papers
  published from 1976 to 2004

20
Content Map (1990-1999)
II. Content Map Analysis
21
Findings
II. Content Map Analysis

• Nanotechnology papers published between 1990 and
  1999 covered the topics related to
• Tools
• E.g., Scanning Tunneling Microscope,
  Transmission Electron Microscopy, Atomic Force
  Microscope, and so forth.
• Physical phenomena
• E.g., Quantum Dots, Single Crystals,
  Self-Assembled Monolayers, Nanomolar
  Concentrations, Porous Silicon, Surface
  Morphologies, and so forth.
• Experiment environments
• E.g., Electric Fields, Room Temperatures,
  X-Ray Diffraction, Temperature Dependences,
  Activation Energies, and so forth.

22
Content Map (2000-2004)
II. Content Map Analysis
-1.51 -0.30 0.33 0.81 1.23 1.63
2.05 2.53 3.16 3.62 4.37
NEW

REGION
23
Findings
II. Content Map Analysis

• Nanotechnology papers published between 2000 and
  2004 also covered the topics related to tools
  (e.g., Scanning Tunneling Microscopy,
  Transmission Electron Microscopy, Atomic Force
  Microscope), physical phenomena (e.g., Quantum
  Dots, Self-Assembled Monolayers), and
  experiment environments (e.g., Aqueous
  Solution, X-Ray Diffraction).
• The topics on experiment environments became less
  active compared with the other two kinds of
  topics.
• There were some new topics like X-Ray
  Photoelectron Spectroscopy, Single-Wall Carbon
  Nanotubes, Carbon Nanotubes, Monte Carlo
  Simulations, and Chemical Vapor Deposition.

24
Country Citation Network (1976-2004)
III. Citation Network Analysis

• The country citation network (1976-2004) consists
  of
• 66 countries,
• 348 inter-country citation relations, and
• 9 self-citation relations.
• The country citation network contains one
  component.
• Different countries knowledge influences each
  other directly or indirectly.
• Much larger clustering coefficient (0.693) than
  the random network (0.162).
• Some countries tend to form communities from
  thepaper citation perspective.

25
Country Citation Network (1976-2004)
III. Citation Network Analysis
26
Institution Citation Network Analysis
III. Citation Network Analysis

• The institution citation network consists of
• 1,237 institutions,
• 3,075 inter-institution citation relations, and
• 7 self-citation relations.
• The institution citation network consists of 20
  components. The giant component contains 1,185
  (95.8) institutions and 3,041 (98.9) relations.
• Most institutions interact with others directly
  or indirectly.
• Smaller average path length (4.050) than the
  randomnetwork (4.440).
• Knowledge can very easily transfer between
  institutions.
• Much larger clustering coefficient (0.069) than
  the random network (0.004).
• Research institutions have a very high tendency
  to form citation clusters.

27
Institution Citation Network (1976-2004)
III. Citation Network Analysis
28
India Nano Story
29
Papers by Year

• The number of papers published from 1976 to 2007.

30
Essential Institutions

• Top 10 institutions based on number of papers
  published from 1976 to 2004.

31
Most Productive Researchers

• Top 10 first authors based on number of papers
  published from 1976 to 2004.

32
Most Cited Researchers

• Top 10 first authors according to the number of
  cites received from all papers in SCI from 1976
  to 2004.

33
The Nano Mapper System
34
System Demo Patent Number Search
35
Search Results Patent Detail
36
System Demo Patent Quick Search
37
Search Results Patent List
38
System Demo Patent Advanced Search
39
System Demo Patent Overall Statistics
40
System Demo Patent Trend Analysis
41
System Demo Patent Trend Analysis (cont.)
42
System Demo Citation Network Analysis
43
System Demo Content Map Analysis
44
Take-home Messages

• Studying international competitive landscape
  knowledge and innovations
• The power of the automated knowledge mapping
  approach
• Prioritized national nanotechnology research
  programs and directions
• Turning academic research (literature) into
  patents and commercial products
• Commercialization directions and priorities

45
Hisinchun Chen, Ph.D. hchen_at_eller.arizona.eduAr
tificial Intelligence LabUniversity of
Arizonahttp//ai.arizona.edu