U.S. Patent Numbers/Date Reference Table
100 Years: 1826 - 1936
Year Utility Patent # First Design First Plant First Reissue Issue Year
1836* 1 - 109      ** 1836*
1837 110 - 545      ** 1837
1838 546 - 1,060      RE00001 1838
1839 1,061 - 1,464      RE00007 1839
1840 1,465 - 1,922      RE00020 1840
1841 1,923 - 2,412      RE00030 1841
1842 2,413 - 2,900      RE00036 1842
1843 2,901 - 3,394 D000001   RE00049 1843
1844 3,395 - 3,872 D000015   RE00060 1844
1845 3,873 - 4,347 D000027   RE00067 1845
1846 4,348 - 4,913 D000044   RE00078 1846
1847 4,914 - 5,408 D000103   RE00091 1847
1848 5,409 - 5,992 D000163   RE00105 1848
1849 5,993 - 6,980 D000209   RE00128 1849
1850 6,981 - 7,864 D000258   RE00158 1850
1851 7,865 - 8,621 D000341   RE00184 1851
1852 8,622 - 9,511 D000431   RE00209 1852
1853 9,512 - 10,357 D000540   RE00229 1853
1854 10,358 - 12,116 D000626   RE00258 1854
1855 12,117 - 14,008 D000683   RE00286 1855
1856 14,009 - 16,323 D000753   RE00337 1856
1857 16,324 - 19,009 D000860   RE00420 1857
1858 19,010 - 22,476 D000973   RE00517 1858
1859 22,477 - 26,641 D001075   RE00643 1859
1860 26,642 - 31,004 D001183   RE00874 1860
1861 31,005 - 34,044 D001366   RE01106 1861
1862 34,045 - 37,265 D001508   RE01253 1862
1863 37,266 - 41,046 D001703   RE01369 1863
1864 41,047 - 45,684 D001879   RE01596 1864
1865 45,685 - 51,783 D002018   RE01844 1865
1866 51,784 - 60,657 D002239   RE02140 1866
1867 60,658 - 72,958 D002533   RE02430 1867
1868 72,959 - 85,502 D002858   RE02830 1868
1869 85,503 - 98,459 D003304   RE03250 1869
1870 98,460 - 110,616 D003810   RE03784 1870
1871 110,617 - 122,303 D004547   RE04223 1871
1872 122,304 - 134,503 D005452   RE04687 1872
1873 134,504 - 146,119 D006336   RE05216 1873
1874 146,120 - 158,349 D007083   RE05717 1874
1875 158,350 - 171,640 D007969   RE06200 1875
1876 171,641 - 185,812 D008884   RE06831 1876
1877 185,813 - 198,732 D009686   RE07452 1877
1878 198,733 - 211,077 D010385   RE08020 1878
1879 211,078 - 223,210 D010975   RE08529 1879
1880 223,211 - 236,136 D011567   RE09017 1880
1881 236,137 - 251,684 D012082   RE09523 1881
1882 251,684 - 269,819 D012647   RE09994 1882
1883 269,820 - 291,015 D013508   RE10265 1883
1884 291,016 - 310,162 D014528   RE10432 1884
1885 310,163 - 333,493 D015678   RE10548 1885
1886 333,494 - 355,290 D016451   RE10677 1886
1887 355,291 - 375,719 D017046   RE10793 1887
1888 375,720 - 395,304 D017995   RE10892 1888
1889 395,305 - 418,664 D018830   RE10978 1889
1890 418,665 - 443,986 D019553   RE11053 1890
1891 443,987 - 446,314 D020439   RE11137 1891
1892 446,315 - 488,975 D021275   RE11217 1892
1893 488,976 - 511,743 D022092   RE11298 1893
1894 511,744 - 531,618 D022994   RE11397 1894
1895 531,619 - 552,501 D023922   RE11461 1895
1896 552,502 - 574,368 D025037   RE11520 1896
1897 574,369 - 596,466 D026482   RE11581 1897
1898 596,467 - 616,870 D028113   RE11646 1898
1899 616,871 - 640,166 D029916   RE11706 1899
1900 640,167 - 664,826 D032055   RE11798 1900
1901 664,827 - 690,384 D033813   RE11879 1901
1902 690,385 - 717,520 D035547   RE11960 1902
1903 717,521 - 748,566 D036187   RE12070 1903
1904 748,567 - 778,833 D036723   RE12189 1904
1905 778,834 - 808,617 D037280   RE12299 1905
1906 808,618 - 839,798 D037766   RE12428 1906
1907 839,799 - 875,678 D038391   RE12587 1907
1908 875,679 - 908,435 D038980   RE12738 1908
1909 908,436 - 945,009 D039737   RE12906 1909
1910 945,010 - 980,177 D040424   RE13066 1910
1911 980,178 - 1,013,094 D041063   RE13189 1911
1912 1,013,095 - 1,049,325 D042073   RE13346 1912
1913 1,049,326 - 1,083,266 D043415   RE13504 1913
1914 1,083,267 - 1,123,211 D045098   RE13668 1914
1915 1,123,212 - 1,166,418 D046813   RE13858 1915
1916 1,166,419 - 1,210,388 D048358   RE14040 1916
1917 1,210,389 - 1,251,457 D050117   RE14238 1917
1918 1,251,458 - 1,290,026 D051629   RE14417 1918
1919 1,290,027 - 1,326,898 D052836   RE14582 1919
1920 1,326,899 - 1,364,062 D054359   RE14785 1920
1921 1,364,063 - 1,401,947 D056844   RE15018 1921
1922 1,401,948 - 1,440,361 D060121   RE15257 1922
1923 1,440,362 - 1,478,995 D061748   RE15513 1923
1924 1,478,996 - 1,521,589 D063675   RE15739 1924
1925 1,521,590 - 1,568,039 D066346   RE15974 1925
1926 1,568,040 - 1,612,699 D069170   RE16240 1926
1927 1,612,700 - 1,654,520 D071772   RE16515 1927
1928 1,654,521 - 1,696,896 D074159   RE16841 1928
1929 1,696,897 - 1,742,180 D077347   RE17176 1929
1930 1,742,181 - 1,787,423 D080254   RE17550 1930
1931 1,787,424 - 1,839,189 D082966 PP00001 RE17917 1931
1932 1,839,190 - 1,892,662 D085903 PP00006 RE18312 1932
1933 1,892,663 - 1,941,448 D088847 PP00052 RE18705 1933
1934 1,941,449 - 1,985,877 D091258 PP00085 RE19038 1934
1935 1,985,878 - 2,026,515 D094179 PP00117 RE19409 1935
1936 2,026,516 - 2,066,308 D098045 PP00162 RE19804 1936
Notes:
* The current patent numbering system began with a patent issued on July 13, 1836. Prior to that date, 9,957 patents had been issued. Defensive Publications (T) and Improvement patents (AI) are not included in this table.
** Reissue patents were not separately numbered until 1838.
  Some patent numbers, as displayed in the table, are 7 characters with the numeric portion padded with leading zeroes.
  Some numbers within a series may be unused. Therefore, the number of patents granted during a year cannot be determined by simply subtracting the number of the first patent issued in one year from the number of the first patent issued in the next year. The user should note that the data in this table have been checked but that they still may not be completely devoid of errors.
  A detailed Patent Technology Monitoring Division report, titled Issue Dates and Patent Numbers Since 1836, which contains first patent numbers and the day of issue for patents issued since 1963, may also be of interest.
Source: U.S. Patent and Trademark Office