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U.S. Patent and Trademark Office Patent Technology Monitoring Team 2/3/2014 Filing Years and Patent Application Serial Numbers Since 1882 Table of Filing Years and Patent Application Serial Numbers, for Patent Applications Filed Since 1882 -- for selected document types * The following table allows a user to determine the approximate year when a patent application was filed based on its application series code and serial number. This table is intended to be used only as a rough guide and some application serial numbers (e.g., those based on patent filings under the Patent Cooperation Treaty (PCT)) have filing dates that may not fall within the time periods indicated by this table. Please note that an application serial number is not the same as a patent number. Filing 1st Utility Application 1st Design Application Year (approximate) (approximate) - 1st Provisional Application (approximate) Series Code Serial Number Series Code Serial Number Series Code Serial Number 1882 n/a 50,000 n/a (see Utility serial numbers) n/a n/a 1883 n/a 84,000 n/a (see Utility serial numbers) n/a n/a 1884 n/a 115,000 n/a (see Utility serial numbers) n/a n/a 1885 n/a 152,000 n/a (see Utility serial numbers) n/a n/a 1886 n/a 187,000 n/a (see Utility serial numbers) n/a n/a 1887 n/a 223,000 n/a (see Utility serial numbers) n/a n/a 1888 n/a 260,000 n/a (see Utility serial numbers) n/a n/a 1889 n/a 295,000 n/a (see Utility serial numbers) n/a n/a 1890 n/a 335,000 n/a (see Utility serial numbers) n/a n/a 1891 n/a 376,000 n/a (see Utility serial numbers) n/a n/a 1892 n/a 417,000 n/a (see Utility serial numbers) n/a n/a 1893 n/a 457,000 n/a (see Utility serial numbers) n/a n/a 1894 n/a 495,000 n/a (see Utility serial numbers) n/a n/a 1895 n/a 533,000 n/a (see Utility serial numbers) n/a n/a 1896 n/a 574,000 n/a (see Utility serial numbers) n/a n/a 1897 n/a 618,000 n/a (see Utility serial numbers) n/a n/a 1898 n/a 665,000 n/a (see Utility serial numbers) n/a n/a 1899 n/a 700,000 n/a (see Utility serial numbers) n/a n/a 1900 n/a 000,001 n/a (see Utility serial numbers) n/a n/a 1901 n/a 41,000 n/a (see Utility serial numbers) n/a n/a 1902 n/a 87,000 n/a (see Utility serial numbers) n/a n/a 1903 n/a 137,000 n/a (see Utility serial numbers) n/a n/a 1904 n/a 188,000 n/a (see Utility serial numbers) n/a n/a 1905 n/a 239,000 n/a (see Utility serial numbers) n/a n/a 1906 n/a 294,000 n/a (see Utility serial numbers) n/a n/a 1907 n/a 350,000 n/a (see Utility serial numbers) n/a n/a 1908 n/a 409,000 n/a (see Utility serial numbers) n/a n/a 1909 n/a 470,000 n/a (see Utility serial numbers) n/a n/a 1910 n/a 536,000 n/a (see Utility serial numbers) n/a n/a 1911 n/a 600,000 n/a (see Utility serial numbers) n/a n/a 1912 n/a 669,000 n/a (see Utility serial numbers) n/a n/a 1913 n/a 740,000 n/a (see Utility serial numbers) n/a n/a 1914 n/a 810,000 n/a (see Utility serial numbers) n/a n/a 1915 1 000,001 n/a (see Utility serial numbers) n/a n/a 1916 1 70,000 n/a (see Utility serial numbers) n/a n/a 1917 1 140,000 n/a (see Utility serial numbers) n/a n/a 1918 1 210,000 n/a (see Utility serial numbers) n/a n/a 1919 1 270,000 n/a (see Utility serial numbers) n/a n/a 1920 1 349,000 n/a (see Utility serial numbers) n/a n/a 1921 1 435,000 n/a (see Utility serial numbers) n/a n/a 1922 1 526,000 n/a 000,001 n/a n/a 1923 1 610,000 n/a 4,700 n/a n/a 1924 1 684,000 n/a 8,200 n/a n/a 1925 1 000,001 n/a 11,900 n/a n/a 1926 1 78,000 n/a 15,900 n/a n/a 1927 1 158,000 n/a 20,200 n/a n/a 1928 1 244,000 n/a 24,700 n/a n/a 1929 1 330,000 n/a 29,400 n/a n/a 1930 1 418,000 n/a 34,000 n/a n/a 1931 1 506,000 n/a 38,000 n/a n/a 1932 1 584,000 n/a 42,300 n/a n/a 1933 1 650,000 n/a 46,700 n/a n/a 1934 1 705,000 n/a 50,300 n/a n/a 1935 2 000,001 n/a 54,700 n/a n/a 1936 2 57,000 n/a 60,400 n/a n/a 1937 2 119,000 n/a 66,800 n/a n/a 1938 2 183,000 n/a 74,000 n/a n/a 1939 2 249,000 n/a 82,100 n/a n/a 1 Filing Years and Patent Application Serial Numbers Since 1882 Table of Filing Years and Patent Application Serial Numbers, for Patent Applications Filed Since 1882 -- for selected document types * The following table allows a user to determine the approximate year when a patent application was filed based on its application series code and serial number. This table is intended to be used only as a rough guide and some application serial numbers (e.g., those based on patent filings under the Patent Cooperation Treaty (PCT)) have filing dates that may not fall within the time periods indicated by this table. Please note that an application serial number is not the same as a patent number. Filing 1st Utility Application 1st Design Application Year (approximate) (approximate) - 1st Provisional Application (approximate) Series Code Serial Number Series Code Serial Number Series Code Serial Number 1940 2 312,000 n/a 89,200 n/a n/a 1941 2 372,000 n/a 97,800 n/a n/a 1942 2 425,000 n/a 105,000 n/a n/a 1943 2 471,000 n/a 109,200 n/a n/a 1944 2 516,000 n/a 112,100 n/a n/a 1945 2 570,000 n/a 117,200 n/a n/a 1946 2 638,000 n/a 125,200 n/a n/a 1947 2 719,000 n/a 135,900 n/a n/a 1948 3 000,001 n/a 143,000 n/a n/a 1949 3 68,000 n/a 000,001 n/a n/a 1950 3 136,000 n/a 7,000 n/a n/a 1951 3 204,000 n/a 13,600 n/a n/a 1952 3 264,000 n/a 17,900 n/a n/a 1953 3 329,000 n/a 23,000 n/a n/a 1954 3 401,000 n/a 28,300 n/a n/a 1955 3 479,000 n/a 33,700 n/a n/a 1956 3 557,000 n/a 39,500 n/a n/a 1957 3 632,000 n/a 44,300 n/a n/a 1958 3 706,000 n/a 49,100 n/a n/a 1959 3 784,000 n/a 54,000 n/a n/a 1960 4 000,001 n/a 58,900 n/a n/a 1961 4 80,000 n/a 63,400 n/a n/a 1962 4 163,000 n/a 68,100 n/a n/a 1963 4 248,000 n/a 73,000 n/a n/a 1964 4 335,000 n/a 78,000 n/a n/a 1965 4 423,000 n/a 83,200 n/a n/a 1966 4 518,000 n/a 000,001 n/a n/a 1967 4 606,000 n/a 5,200 n/a n/a 1968 4 695,000 n/a 10,000 n/a n/a 1969 4 788,000 n/a 15,200 n/a n/a 1970 5 000,001 n/a 20,700 n/a n/a 1971 5 103,000 n/a (see Utility serial numbers) n/a n/a 1972 5 214,538 n/a (see Utility serial numbers) n/a n/a 1973 5 319,971 n/a (see Utility serial numbers) n/a n/a 1974 5 429,701 n/a (see Utility serial numbers) n/a n/a 1975 5 537,821 n/a (see Utility serial numbers) n/a n/a 1976 5 645,931 n/a (see Utility serial numbers) n/a n/a 1977 5 756,051 n/a (see Utility serial numbers) n/a n/a 1978 5 866,211 n/a (see Utility serial numbers) n/a n/a 1979 6 000,001 n/a (see Utility serial numbers) n/a n/a 1980 6 108,971 n/a (see Utility serial numbers) n/a n/a 1981 6 221,957 n/a (see Utility serial numbers) n/a n/a 1982 6 336,510 n/a (see Utility serial numbers) n/a n/a 1983 6 454,954 n/a (see Utility serial numbers) n/a n/a 1984 6 567,457 n/a (see Utility serial numbers) n/a n/a 1985 6 688,174 n/a (see Utility serial numbers) n/a n/a 1986 6 815,454 n/a (see Utility serial numbers) n/a n/a 1987 7 000,001 n/a (see Utility serial numbers) n/a n/a 1988 7 140,321 n/a (see Utility serial numbers) n/a n/a 1989 7 292,671 n/a (see Utility serial numbers) n/a n/a 1990 7 459,413 n/a (see Utility serial numbers) n/a n/a 1991 7 636,609 n/a (see Utility serial numbers) n/a n/a 1992 7 815,501 n/a (see Utility serial numbers) n/a n/a 10/1/1992 n/a n/a 29 000,001 n/a n/a 1993 8 000,001 29 3,180 n/a n/a 1994 8 176,047 29 16,976 n/a n/a 1995 8 367,542 29 32,919 n/a n/a 6/8/1995 n/a n/a n/a n/a 60 000,001 1996 8 581,739 29 48,507 60 9,474 1997 8 777,991 29 64,454 60 34,487 12/30/1997 9 000,001 n/a n/a n/a n/a 1998 n/a n/a 29 81,426 60 70,310 1999 9 219,723 29 98,302 60 113,787 2 Filing Years and Patent Application Serial Numbers Since 1882 Table of Filing Years and Patent Application Serial Numbers, for Patent Applications Filed Since 1882 -- for selected document types * The following table allows a user to determine the approximate year when a patent application was filed based on its application series code and serial number. This table is intended to be used only as a rough guide and some application serial numbers (e.g., those based on patent filings under the Patent Cooperation Treaty (PCT)) have filing dates that may not fall within the time periods indicated by this table. Please note that an application serial number is not the same as a patent number. Filing 1st Utility Application 1st Design Application Year (approximate) (approximate) - 1st Provisional Application (approximate) Series Code Serial Number Series Code Serial Number Series Code Serial Number 2000 9 471,932 29 116,135 60 173,038 2001 9 740,756 29 134,406 60 256,730 2002 10 32,443 29 152,739 60 343,564 2003 10 334,164 29 173,499 60 437,173 2004 10 746,297 29 196,307 60 532,638 2005 11 23,305 29 220,177 60 639,450 2006 11 320,178 29 245,663 60 754,464 2007 11 646,743 29 270,581 60 877,460 2008 12 5,841 29 294,213 61 9,389 2009 12 317,884 29 313,375 61 203,947 2010 12 655,475 29 348,400 61 335,046 2011 12 930,166 29 372,670 61 460,301 2012 13 374,487 29 395,318 61 631,245 2013 13 694,748 29 442,191 61 848,274 2014 13 998,975 29 463,549 61 964,276 * Notes: n/a : Information for blocks labeled as "n/a" is either not available or not applicable. In general, patent application serial numbers are assigned chronologically to patent applications filed at the U.S. Patent and Trademark Office. For this reason, application serial numbers and filing dates will generally correspond. Please note, however, that there are some applications for which the serial number and filing date may not fall within the time periods indicated in the above table. For example, for applications based on patent applications filed under the Patent Cooperation Treaty (PCT), the U.S. filing date is the date of filing of the PCT application. For these PCT-based patent applications, the year displayed for a patent application serial number very generally corresponds to the year when the PCT-based application entered USPTO's internal patent examination process (rather than to the year of U.S. patent filing). For more recently filed patent applications, the complete patent application serial number consists of two parts, the application series code and the six digit application serial number. For some earlier years displayed in the table, the application series code is not available. During some time periods, the U.S. Patent and Trademark Office used a common numbering system for assigning application numbers to design and utility patent applications. During other time periods, separate numbering systems were used for the two types of patent applications. For those years when a common numbering system was in effect, the user should refer to the utility patent application serial numbers in the table. For plant patent applications and reissue patent applications, the utility patent application serial number ranges displayed in the table can be used to determine the approximate year when the patent application was filed based on its application serial number. Starting on October 1, 1992, design patent applications are assigned separate application serial numbers which are associated with newly established application series codes, beginning with "29". Starting on June 8, 1995, the PTO began to accept provisional patent applications in accordance with implemented legislation arising from the GATT Uruguay Round World Trade Organization Agreement. Provisional patent applications receive separate serial numbers that are associated with newly established application series codes, beginning with "60" or "61". Please note that this table should not be relied upon to obtain counts of patent applications filed during a particular year. For such statistics, the Patent Technology Monitoring Team (PTMT) report, U.S. Patent Activity, 1790-CurrentYear , should be consulted. Data Sources: Figures from 1972 to the present are obtained from the PTO applications log and from the Office of Initial Patent Examination. Figures for years prior to 1972 are estimates based on a manual inspection of application serial numbers that appear in the Official Gazette patent publication that is published weekly. 3 PTMT Contacts Questions regarding this report should be directed to: U.S. Patent and Trademark Office Electronic Information Products Division - PTMT P.O Box 1450 Alexandria VA 22313-1450 tel: (571) 272-5600 fax: (571) 273-0110 email: oeip@uspto.gov address of USPTO Web Site: http://www.uspto.gov address of Viewable PTMT reports: http://www.uspto.gov/web/offices/ac/ido/oeip/taf/reports.htm selected PTMT files available for download at : http://www.uspto.gov/web/offices/ac/ido/oeip/taf/data/ Is there a question about what the USPTO can or cannot do that you cannot find an answer for? Send questions about USPTO programs and services to the USPTO Contact Center(UCC). You can suggest USPTO webpages or material you would like featured on this section by Email to the webmaster@uspto.gov. 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