 
Filing Year 
1st Utility Application (approximate) 
1st Design Application (approximate) 
1st Provisional Application (approximate) 


  Series Code  Serial Number  Series Code  Serial Number  Series Code  Serial Number 
1882  n/a  050,000  n/a  (see Utility serial numbers)  n/a  n/a 
1883  n/a  084,000  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  041,000  n/a  (see Utility serial numbers)  n/a  n/a 
1902  n/a  087,000  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  070,000  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  004,700  n/a  n/a 
1924  1  684,000  n/a  008,200  n/a  n/a 
1925  1  000,001  n/a  011,900  n/a  n/a 
1926  1  078,000  n/a  015,900  n/a  n/a 
1927  1  158,000  n/a  020,200  n/a  n/a 
1928  1  244,000  n/a  024,700  n/a  n/a 
1929  1  330,000  n/a  029,400  n/a  n/a 
1930  1  418,000  n/a  034,000  n/a  n/a 
1931  1  506,000  n/a  038,000  n/a  n/a 
1932  1  584,000  n/a  042,300  n/a  n/a 
1933  1  650,000  n/a  046,700  n/a  n/a 
1934  1  705,000  n/a  050,300  n/a  n/a 
1935  2  000,001  n/a  054,700  n/a  n/a 
1936  2  057,000  n/a  060,400  n/a  n/a 
1937  2  119,000  n/a  066,800  n/a  n/a 
1938  2  183,000  n/a  074,000  n/a  n/a 
1939  2  249,000  n/a  082,100  n/a  n/a 
1940  2  312,000  n/a  089,200  n/a  n/a 
1941  2  372,000  n/a  097,800  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  068,000  n/a  000,001  n/a  n/a 
1950  3  136,000  n/a  007,000  n/a  n/a 
1951  3  204,000  n/a  013,600  n/a  n/a 
1952  3  264,000  n/a  017,900  n/a  n/a 
1953  3  329,000  n/a  023,000  n/a  n/a 
1954  3  401,000  n/a  028,300  n/a  n/a 
1955  3  479,000  n/a  033,700  n/a  n/a 
1956  3  557,000  n/a  039,500  n/a  n/a 
1957  3  632,000  n/a  044,300  n/a  n/a 
1958  3  706,000  n/a  049,100  n/a  n/a 
1959  3  784,000  n/a  054,000  n/a  n/a 
1960  4  000,001  n/a  058,900  n/a  n/a 
1961  4  080,000  n/a  063,400  n/a  n/a 
1962  4  163,000  n/a  068,100  n/a  n/a 
1963  4  248,000  n/a  073,000  n/a  n/a 
1964  4  335,000  n/a  078,000  n/a  n/a 
1965  4  423,000  n/a  083,200  n/a  n/a 
1966  4  518,000  n/a  000,001  n/a  n/a 
1967  4  606,000  n/a  005,200  n/a  n/a 
1968  4  695,000  n/a  010,000  n/a  n/a 
1969  4  788,000  n/a  015,200  n/a  n/a 
1970  5  000,001  n/a  020,700  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 
10/01/92  n/a  n/a  29  000,001  n/a  n/a 
1993  8  000,001  29  003,180  n/a  n/a 
1994  8  176,047  29  016,976  n/a  n/a 
1995  8  367,542  29  032,919  n/a  n/a 
06/08/95  n/a  n/a  n/a  n/a  60  000,001 
1996  8  581,739  29  48,507  60  009,474 
1997  8  777,991  29  64,454  60  034,487 
12/30/97  9  000,001  n/a  n/a  n/a  n/a 
1998  n/a  n/a  29  081,426  60  70,310 
1999  9  219,723  29  098,302  60  113,787 
2000  9  471,932  29  116,135  60  173,038 
2001  9  740,756  29  134,406  60  256,730 
2002  10  032,443  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  023,305  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 
2015  14  544,379  29  474,693  62  124,715 
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 (USPTO). 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 PCTbased patent applications, the year displayed for a patent application serial number very generally corresponds to the year when the PCTbased application entered USPTO's internal patent examination process (rather than to the year of U.S. patent filing). Also, the relationship between a patent application serial number and the corresponding U.S. filing date can differ as a result of the form of the application submission, as received at USPTO. This occurs because of the different processes used to assign serial numbers to incoming paper application submissions as compared to incoming electronic application submissions and may result in some serial numbers that fall outside of the time periods shown in the table.
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 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 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", "61", or "62".
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, 1790CurrentYear, 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.
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 223131450tel: (571) 2725600
fax: (571) 2730110
email: oeip@uspto.govaddress of PTMT pages at the USPTO Web Site: 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/
Home > Listing of Viewable PTMT Reports
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