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Table 3 Characteristics of manufacturers

From: Patent challenges and factors associated with successful patent challengers under the patent linkage system: recent evidence from South Korea after the Korea United States free trade agreement

  Non
challengers
Challengers p-value Passive
challengers
Aggressive challengers p-value
  94 77   58 19  
Innovative
  No 85 57 0.0083 46 11 0.1221
  Yes 9 20   12 8  
New drug
  No 85 44 < 0.0001 36 8 0.2080
  Yes 9 33   22 11  
Sales 87,321
(175,878)
213,598
(271,251)
0.0005 183,181
(263,621)
306,449
(280,190)
0.0856
Employees 239
(339)
515
(510)
< 0.0001 433
(436)
765
(637)
0.0448
Reimbursed drugs 73
(76.7)
189
(69.4)
< 0.0001 170
(56.9)
248
(72.3)
< 0.0001