Table 26. Patent Classification Activity



	United States Patent and Trademark Office

Performance and Accountability Report Fiscal Year 2001
Other Accompanying Information > Workload Tables

Patent Classification Activity for Fiscal Years 1997 through 2001

TABLE 26

PATENT CLASSIFICATION ACTIVITY
(FY 1997 - FY 2001)

ACTIVITY

1997

1998

1999

2000

2001

Original patents professionally reclassified -

completed projects

114,895

100,474

82,944

53,437

39,209

Subclasses established

6,789

3,569

2,433

1,869

1,878

Reclassified patents clerically processed, total

417,866

393,985

193,309

128,362

145,090

Original U.S. patents

141,518

119,425

62,584

49,231

51,266

Cross-reference U.S. patents

234,370

189,957

97,615

70,302

84,611

Foreign patents

41,978

84,603

33,110

8,829

9,213