Patent counts for nber category 6 Others

year	in force	issued
1840	1,894	212
1841	2,078	213
1842	2,286	240
1843	2,480	250
1844	2,640	228
1845	2,755	222
1846	2,977	287
1847	3,080	213
1848	3,193	256
1849	3,427	442
1850	3,571	402
1851	3,707	329
1852	3,897	409
1853	4,093	389
1854	4,646	765
1855	5,246	813
1856	6,039	1,033
1857	7,074	1,285
1858	8,561	1,715
1859	10,356	2,017
1860	12,286	2,221
1861	13,643	1,566
1862	14,925	1,538
1863	16,231	1,755
1864	18,020	2,190
1865	20,699	3,002
1866	24,831	4,541
1867	30,812	6,370
1868	36,759	6,712
1869	42,680	6,749
1870	48,081	6,419
1871	52,867	6,071
1872	57,464	6,312
1873	61,555	6,108
1874	65,572	6,238
1875	72,607	7,035
1876	80,359	7,752
1877	87,553	7,227
1878	92,797	6,777
1879	97,685	6,426
1880	102,528	6,598
1881	108,171	7,833
1882	114,028	8,859
1883	119,466	10,146
1884	122,237	8,974
1885	126,946	11,421
1886	131,024	10,827
1887	135,014	10,409
1888	138,283	9,340
1889	142,912	10,941
1890	148,386	11,582
1891	152,356	10,208
1892	156,016	10,695
1893	158,580	10,316
1894	160,002	8,758
1895	162,798	9,464
1896	166,425	10,053
1897	169,894	10,067
1898	171,465	9,404
1899	173,257	10,651
1900	173,883	11,005
1901	176,432	11,290
1902	177,090	12,079
1903	180,184	13,921
1904	183,032	13,257
1905	186,597	13,087
1906	189,473	13,635
1907	193,631	15,740
1908	197,891	14,468
1909	203,270	16,074
1910	208,353	15,399
1911	213,001	13,575
1912	218,861	15,155
1913	223,442	14,634
1914	230,361	16,986
1915	238,967	18,010
1916	246,785	18,469
1917	252,448	16,949
1918	257,197	15,758
1919	259,229	14,111
1920	260,265	14,957
1921	262,323	15,315
1922	264,456	15,220
1923	266,240	15,722
1924	267,999	17,196
1925	272,364	18,833
1926	274,494	18,204
1927	275,854	16,759
1928	279,133	16,854
1929	282,163	18,185
1930	285,024	17,495
1931	288,357	20,319
1932	290,827	20,480
1933	289,902	17,544
1934	288,720	16,136
1935	288,847	15,516
1936	289,527	14,791
1937	288,502	13,932
1938	287,158	13,971
1939	287,648	15,710
1940	286,556	14,924
1941	283,943	14,289
1942	278,087	12,977
1943	270,671	10,788
1944	262,748	8,836
1945	252,791	7,269
1946	240,903	5,925
1947	229,155	5,747
1948	215,791	6,955
1949	206,102	10,791
1950	202,971	14,413
1951	201,079	14,574
1952	200,737	14,844
1953	199,959	14,013
1954	197,141	11,114
1955	193,247	10,077
1956	191,983	14,446
1957	190,224	13,165
1958	189,937	14,002
1959	192,132	15,172
1960	194,365	13,021
1961	199,113	13,584
1962	207,328	15,600
1963	215,018	13,499
1964	222,351	13,080
1965	232,185	16,789
1966	238,398	17,004
1967	241,147	17,162
1968	241,915	15,683
1969	244,518	17,106
1970	245,930	15,425
1971	253,955	19,139
1972	260,606	16,728
1973	263,311	17,345
1974	268,356	18,016
1975	270,904	16,550
1976	271,513	15,781
1977	273,271	14,779
1978	275,257	15,570
1979	270,905	11,518
1980	272,514	14,838
1981	274,998	15,564
1982	271,384	13,175
1983	267,181	12,801
1984	265,821	15,802
1985	266,607	16,479
1986	265,370	16,539
1987	266,178	18,479
1988	260,989	16,856
1989	262,026	20,873
1990	260,283	19,889
1991	256,614	20,409
1992	251,046	19,899
1993	243,824	18,971
1994	237,978	20,145
1995	228,569	19,615
1996	224,579	20,499
1997	217,230	20,177
1998	214,662	25,697
1999	218,666	27,153
2000	230,069	26,953
2001	240,165	26,431
2002	247,544	25,745
2003	254,254	25,294
2004	258,905	23,326
2005	259,950	19,323
2006	260,972	20,025
2007	259,359	17,451
2008	256,984	16,603
2009	254,081	16,821
2010	255,853	23,544
2011	257,897	23,137
2012	262,835	25,613
2013	271,640	28,067
2014	280,614	29,490
Total		2,207,399

Back to the NBER List