Patent Number Search


General Information About Patent Number

U.S. Patent Issue Years and Patent Number Ranges

Trying to figure out the year in which a patent number was granted? This handy chart from the U.S. Patent and Trademark is helpful. Remember, even though patents have been issued since 1790, numbered patents only started in 1836.

  • This chart is particularly useful to collectors and those interested in antiques and collectibles. Patent numbers are sometimes available on an item of interest, or included in accompanying instructions or other materials about the item.
td> Issue
Year
1st
Utility
1st
Design
1st
Plant
1st**
Reissue
1st
Statutory
Invention
Registration
1836* 0000001     **   1837 0000110     **   1838 0000546     RE00001   1839 0001061     RE00007   1840 0001465     RE00020   1841 0001923     RE00030   1842 0002413     RE00036   1843 0002901 D000001   RE00049   1844 0003395 D000015   RE00060   1845 0003873 D000027   RE00067   1846 0004348 D000044   RE00078   1847 0004914 D000103   RE00091   1848 0005409 D000163   RE00105   1849 0005993 D000209   RE00128   1850 0006981 D000258   RE00158   1851 0007865 D000341   RE00184   1852 0008622 D000431   RE00209   1853 0009512 D000540   RE00229   1854 0010358 D000626   RE00258   1855 0012117 D000683   RE00286   1856 0014009 D000753   RE00337   1857 0016324 D000860   RE00420   1858 0019010 D000973   RE00517   1859 0022477 D001075   RE00643   1860 0026642 D001183   RE00874   1861 0031005 D001366   RE01106   1862 0034045 D001508   RE01253   1863 0037266 D001703   RE01369   1864 0041047 D001879   RE01596   1865 0045685 D002018   RE01844   1866 0051784 D002239   RE02140   1867 0060658 D002533   RE02430   1868 0072959 D002858   RE02830   1869 0085503 D003304   RE03250   1870 0098460 D003810   RE03784   1871 0110617 D004547   RE04223   1872 0122304 D005452   RE04687   1873 0134504 D006336   RE05216   1874 0146120 D007083   RE05717   1875 0158350 D007969   RE06200   1876 0171641 D008884   RE06831   1877 0185813 D009686   RE07452   1878 0198733 D010385   RE08020   1879 0211078 D010975   RE08529   1880 0223211 D011567   RE09017   1881 0236137 D012082   RE09523   1882 0251685 D012647   RE09994   1883 0269820 D013508   RE10265   1884 0291016 D014528   RE10432   1885 0310163 D015678   RE10548   1886 0333494 D016451   RE10677   1887 0355291 D017046   RE10793   1888 0375720 D017995   RE10892   1889 0395305 D018830   RE10978   1890 0418665 D019553   RE11053   1891 0443987 D020439   RE11137   1892 0466315 D021275   RE11217   1893 0488976 D022092   RE11298   1894 0511744 D022994   RE11397   1895 0531619 D023922   RE11461   1896 0552502 D025037   RE11520   1897 0574369 D026482   RE11581   1898 0596467 D028113   RE11646   1899 0616871 D029916   RE11706   1900 0640167 D032055   RE11798   1901 0664827 D033813   RE11879   1902 0690385 D035547   RE11960   1903 0717521 D036187   RE12070   1904 0748567 D036723   RE12189   1905 0778834 D037280   RE12299   1906 0808618 D037766   RE12428   1907 0839799 D038391   RE12587   1908 0875679 D038980   RE12738   1909 0908436 D039737   RE12906   1910 0945010 D040424   RE13066   1911 0980178 D041063   RE13189   1912 1013095 D042073   RE13346   1913 1049326 D043415   RE13504   1914 1083267 D045098   RE13668   1915 1123212 D046813   RE13858   1916 1166419 D048358   RE14040   1917 1210389 D050117   RE14238   1918 1251458 D051629   RE14417   1919 1290027 D052836   RE14582   1920 1326899 D054359   RE14785   1921 1364063 D056844   RE15018   1922 1401948 D060121   RE15257   1923 1440362 D061748   RE15513   1924 1478996 D063675   RE15739   1925 1521590 D066346   RE15974   1926 1568040 D069170   RE16240   1927 1612700 D071772   RE16515   1928 1654521 D074159   RE16841   1929 1696897 D077347   RE17176   1930 1742181 D080254   RE17550   1931 1787424 D082966 PP00001 RE17917   1932 1839190 D085903 PP00006 RE18312   1933 1892663 D088847 PP00052 RE18705   1934 1941449 D091258 PP00085 RE19038   1935 1985878 D094179 PP00117 RE19409   1936 2026516 D098045 PP00162 RE19804   1937 2066309 D102601 PP00211 RE20226   1938 2104004 D107738 PP00266 RE20610   1939 2142080 D112765 PP00307 RE20959   1940 2185170 D118358 PP00352 RE21311   1941 2227418 D124503 PP00437 RE21683   1942 2268540 D130989 PP00499 RE21992   1943 2307007 D134717 PP00564 RE22242   1944 2338081 D136946 PP00611 RE22415   1945 2366154 D139862 PP00649 RE22585   1946 2391856 D143386 PP00666 RE22706   1947 2413675 D146165 PP00722 RE22827   1948 2433824 D148267 PP00774 RE22957   1949 2457797 D152235 PP00818 RE23068   1950 2492944 D156686 PP00911 RE23186   1951 2536016 D161404 PP01001 RE23315   1952 2580379 D165568 PP01059 RE23449   1953 2624046 D168527 PP01160 RE23612   1954 2664562 D171241 PP01238 RE23763   1955 2698434 D173777 PP01339 RE23918   1956 2728913 D176490 PP01442 RE24105   1957 2775762 D179467 PP01543 RE24263   1958 2818567 D181829 PP01672 RE24413   1959 2866973 D184204 PP01792 RE24584   1960 2919443 D186973 PP01893 RE24761   1961 2966681 D189516 PP02009 RE24918   1962 3015103 D192004 PP02117 RE25107   1963 3070801 D194304 PP02208 RE25309   1964 3116487 D197269 PP02337 RE25507   1965 3163865 D199955 PP02465 RE25707   1966 3226729 D203379 PP02585 RE25953   1967 3295143 D206567 PP02699 RE26132   1968 3360800 D209732 PP02784 RE26328   1969 3419907 D213084 PP02856 RE26515 1970 3487470 D216419 PP02959 RE26749   1971 3551909 D219637 PP03011 RE27018   1972 3631539 D222793 PP03063 RE27264   1973 3707729 D225695 PP03281 RE27540   1974 3781914 D229729 PP03413 RE27856   1975 3858241 D234033 PP03674 RE28292   1976 3930271 D238315 PP03824 RE28671   1977 4000520 D242881 PP04001 RE29095   1978 4065812 D246811 PP04174 RE29506   1979 4131952 D250676 PP04360 RE29872   1980 4180867 D253796 PP04491 RE30183   1981 4242757 D257746 PP04612 RE30469   1982 4308622 D262495 PP04796 RE30840   1983 4366579 D267440 PP04970 RE31115   1984 4423523 D272009 PP05168 RE31479   1985 4490855 D276949 PP05380 RE31783 H000001 1986 4562596 D282020 PP05622 RE32061 H000007 1987 4633526 D287540 PP05846 RE32323 H000182 1988 4716594 D293500 PP06075 RE32569 H000396 1989 4794652 D299180 PP06501 RE32814 H000563 1990 4890335 D305275 PP07089 RE33138 H000720 1991 4980927 D313301 PP07408 RE33510 H000863 1992 5077836 D322878 PP07761 RE33786 H001007 1993 5175886 D332170 PP08082 RE34154 H001124 1994 5274846 D342818 PP08527 RE34493 H001270 1995 5377359 D353932 PP09026 RE34814 H001389 1996 5479658 D365671 PP09413 RE35136 H001512 1997 5590420 D377107 PP09776 RE35418 H001623 1998 5704062 D388585 PP10172 RE35708 H001701 1999 5855021 D403485 PP10743 RE36021 H001766 2000 6009555 D418273 PP11169 RE36479 H001826 2001 6167569 D435713 PP11728 RE37006 H001930 2002 6334220 D452599 PP12314 RE37489 H002008 2003 6502244 D468073 PP13447 RE37954 H002057 2004 6671884 D484671 PP14441 RE38377 H002093 2005 6836899 D500396 PP15460 RE38680 H002113 2006 6981282 D513356 PP16176 RE38928 H002137 2007 7155746 D534331 PP17326 RE39452 H002177 2008 7313829 D558426 PP18373 RE39964 H002208 2009 7472428 D584026 PP19613 RE40613H00222

(*) The current patent numbering system began with a patent issued on July 13, 1836. Prior to that date, 9,957 patents had been issued. The user should note that the data in this table have been checked but that they still may not be completely devoid of errors.

Numbers, as displayed in the table, are 7 characters with the numeric portion padded with leading zeroes where necessary.

Note that 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.

(**) Reissue patents were not separately numbered until 1838

(***) Defensive Publications and Improvement (AI) patents are not included in this table.

So, when we know what patent number means, it is easy for us to do a patent number search.