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Table 14 Technological levels of countries in stem cell field

From: Assessment of technological level of stem cell research using principal component analysis

Cell type

Nation

NP_Patent

PII_Patent

NP_Paper

PII_Paper

Total

Adult stem cell

US

300.7 (1)

191.2 (1)

207.2 (1)

150.2 (1)

849.3 (1)

CA

22.4 (3)

109.2 (2)

22.1 (8)

134.6 (4)

288.2 (2)

IL

13.7 (5)

84.8 (3)

8.1 (10)

136.1 (3)

242.6 (3)

JP

23.9 (2)

58.8 (4)

61.1 (3)

86.0 (8)

229.8 (4)

DE

14.6 (4)

44.4 (6)

42.8 (4)

113.8 (6)

215.6 (5)

UK

5.7 (9)

19.8 (10)

28.7 (5)

145.0 (2)

199.3 (6)

FR

6.7 (7)

34.7 (7)

25.3 (7)

118.0 (5)

184.7 (7)

CN

0.4 (11)

– (n/a)

142.3 (2)

25.5 (11)

168.2 (8)

SG

6.5 (8)

48.6 (5)

5.3 (11)

93.9 (7)

154.4 (9)

KR

8.6 (6)

26.9 (9)

27.1 (6)

84.0 (10)

146.7 (10)

TW

4.8 (10)

31.4 (8)

9.8 (9)

84.8 (9)

130.7 (11)

Embryonic stem cell

US

170.2 (1)

183.1 (1)

83.5 (1)

131.7 (2)

568.6 (1)

SG

4.0 (8)

69.3 (3)

5.7 (10)

117.8 (4)

196.8 (2)

IL

5.5 (5)

44.6 (5)

6.8 (9)

139.8 (1)

196.7 (3)

DE

5.4 (6)

74.6 (2)

20.4 (5)

87.3 (7)

187.7 (4)

UK

10.4 (3)

34.7 (8)

20.5 (4)

118.5 (3)

184.1 (5)

JP

14.9 (2)

64.0 (4)

28.0 (2)

77.0 (8)

183.9 (6)

CA

9.5 (4)

39.7 (7)

9.5 (6)

112.0 (5)

170.7 (7)

FR

4.8 (7)

40.3 (6)

9.4 (7)

101.8 (6)

156.3 (8)

KR

2.6 (10)

5.5 (9)

8.6 (8)

53.4 (9)

70.0 (9)

CN

1.2 (11)

1.5 (11)

21.9 (3)

35.8 (11)

60.4 (10)

TW

2.7 (9)

3.0 (10)

2.0 (11)

37.5 (10)

45.2 (11)

Induced pluripotent stem cell

JP

1.9 (1)

42.2 (1)

4.7 (2)

41.9 (6)

90.7 (1)

US

1.2 (2)

– (n/a)

10.0 (1)

71.3 (1)

82.6 (2)

UK

– (n/a)

– (n/a)

1.0 (5)

64.0 (2)

65.0 (3)

IL

– (n/a)

– (n/a)

0.7 (6)

61.8 (3)

62.6 (4)

FR

– (n/a)

– (n/a)

0.6 (9)

47.4 (4)

48.0 (5)

CA

– (n/a)

– (n/a)

0.5 (10)

42.1 (5)

42.5 (6)

DE

– (n/a)

– (n/a)

1.6 (4)

36.5 (7)

38.1 (7)

KR

– (n/a)

– (n/a)

0.7 (7)

36.0 (9)

36.7 (8)

SG

– (n/a)

– (n/a)

0.3 (11)

36.1 (8)

36.5 (9)

CN

– (n/a)

– (n/a)

3.4 (3)

22.9 (10)

26.3 (10)

TW

0.4 (3)

– (n/a)

0.7 (8)

21.5 (11)

22.5 (11)

  1. The number in parentheses indicates a ranking among countries
  2. NP_Patent number of patents, PII_Patent Patent Impact Index, NP_Paper number of papers, PII_Paper Paper Impact Index