Total U.S. Biotechnology Patents Granted per Year by Patent Class: 1977-2015 |
|||||||
(Original & Cross-Reference Classifications; Duplicates Eliminated) |
|||||||
Year |
Patent Class* |
||||||
47 |
71 |
119 |
426 |
435 |
800 |
930 |
|
1977-87 |
1,853 |
938 |
2,271 |
7,582 |
7,669 |
66 |
1,573 |
1988 |
183 |
61 |
234 |
793 |
1,070 |
23 |
317 |
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