PRODUCTS   
Products and Services > Patent Technology Monitoring Team

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
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/a050,000n/a(see Utility serial numbers)n/an/a
1883 n/a084,000n/a(see Utility serial numbers)n/an/a
1884 n/a115,000n/a(see Utility serial numbers)n/an/a
1885 n/a152,000n/a(see Utility serial numbers)n/an/a
1886 n/a187,000n/a(see Utility serial numbers)n/an/a
1887 n/a223,000n/a(see Utility serial numbers)n/an/a
1888 n/a260,000n/a(see Utility serial numbers)n/an/a
1889 n/a295,000n/a(see Utility serial numbers)n/an/a
1890 n/a335,000n/a(see Utility serial numbers)n/an/a
1891 n/a376,000n/a(see Utility serial numbers)n/an/a
1892 n/a417,000n/a(see Utility serial numbers)n/an/a
1893 n/a457,000n/a(see Utility serial numbers)n/an/a
1894 n/a495,000n/a(see Utility serial numbers)n/an/a
1895 n/a533,000n/a(see Utility serial numbers)n/an/a
1896 n/a574,000n/a(see Utility serial numbers)n/an/a
1897 n/a618,000n/a(see Utility serial numbers)n/an/a
1898 n/a665,000n/a(see Utility serial numbers)n/an/a
1899 n/a700,000n/a(see Utility serial numbers)n/an/a
1900 n/a000,001n/a(see Utility serial numbers)n/an/a
1901 n/a041,000n/a(see Utility serial numbers)n/an/a
1902 n/a087,000n/a(see Utility serial numbers)n/an/a
1903 n/a137,000n/a(see Utility serial numbers)n/an/a
1904 n/a188,000n/a(see Utility serial numbers)n/an/a
1905 n/a239,000n/a(see Utility serial numbers)n/an/a
1906 n/a294,000n/a(see Utility serial numbers)n/an/a
1907 n/a350,000n/a(see Utility serial numbers)n/an/a
1908 n/a409,000n/a(see Utility serial numbers)n/an/a
1909 n/a470,000n/a(see Utility serial numbers)n/an/a
1910 n/a536,000n/a(see Utility serial numbers)n/an/a
1911 n/a600,000n/a(see Utility serial numbers)n/an/a
1912 n/a669,000n/a(see Utility serial numbers)n/an/a
1913 n/a740,000n/a(see Utility serial numbers)n/an/a
1914 n/a810,000n/a(see Utility serial numbers)n/an/a
1915 1 000,001n/a(see Utility serial numbers)n/an/a
1916 1 070,000n/a(see Utility serial numbers)n/an/a
1917 1 140,000n/a(see Utility serial numbers)n/an/a
1918 1 210,000n/a(see Utility serial numbers)n/an/a
1919 1 270,000n/a(see Utility serial numbers)n/an/a
1920 1 349,000n/a(see Utility serial numbers)n/an/a
1921 1 435,000n/a(see Utility serial numbers)n/an/a
1922 1 526,000n/a000,001 n/an/a
1923 1 610,000n/a004,700 n/an/a
1924 1 684,000n/a008,200 n/an/a
1925 1 000,001n/a011,900 n/an/a
1926 1 078,000n/a015,900 n/an/a
1927 1 158,000n/a020,200 n/an/a
1928 1 244,000n/a024,700 n/an/a
1929 1 330,000n/a029,400 n/an/a
1930 1 418,000n/a034,000 n/an/a
1931 1 506,000n/a038,000 n/an/a
1932 1 584,000n/a042,300 n/an/a
1933 1 650,000n/a046,700 n/an/a
1934 1 705,000n/a050,300 n/an/a
1935 2 000,001n/a054,700 n/an/a
1936 2 057,000n/a060,400 n/an/a
1937 2 119,000n/a066,800 n/an/a
1938 2 183,000n/a074,000 n/an/a
1939 2 249,000n/a082,100 n/an/a
1940 2 312,000n/a089,200 n/an/a
1941 2 372,000n/a097,800 n/an/a
1942 2 425,000n/a105,000 n/an/a
1943 2 471,000n/a109,200 n/an/a
1944 2 516,000n/a112,100 n/an/a
1945 2 570,000n/a117,200 n/an/a
1946 2 638,000n/a125,200 n/an/a
1947 2 719,000n/a135,900 n/an/a
1948 3 000,001n/a143,000 n/an/a
1949 3 068,000n/a000,001 n/an/a
1950 3 136,000n/a007,000 n/an/a
1951 3 204,000n/a013,600 n/an/a
1952 3 264,000n/a017,900 n/an/a
1953 3 329,000n/a023,000 n/an/a
1954 3 401,000n/a028,300 n/an/a
1955 3 479,000n/a033,700 n/an/a
1956 3 557,000n/a039,500 n/an/a
1957 3 632,000n/a044,300 n/an/a
1958 3 706,000n/a049,100 n/an/a
1959 3 784,000n/a054,000 n/an/a
1960 4 000,001n/a058,900 n/an/a
1961 4 080,000n/a063,400 n/an/a
1962 4 163,000n/a068,100 n/an/a
1963 4 248,000n/a073,000 n/an/a
1964 4 335,000n/a078,000 n/an/a
1965 4 423,000n/a083,200 n/an/a
1966 4 518,000n/a000,001 n/an/a
1967 4 606,000n/a005,200 n/an/a
1968 4 695,000n/a010,000 n/an/a
1969 4 788,000n/a015,200 n/an/a
1970 5 000,001n/a020,700 n/an/a
1971 5 103,000n/a(see Utility serial numbers)n/an/a
1972 5 214,538n/a(see Utility serial numbers)n/an/a
1973 5 319,971n/a(see Utility serial numbers)n/an/a
1974 5 429,701n/a(see Utility serial numbers)n/an/a
1975 5 537,821n/a(see Utility serial numbers)n/an/a
1976 5 645,931n/a(see Utility serial numbers)n/an/a
1977 5 756,051n/a(see Utility serial numbers)n/an/a
1978 5 866,211n/a(see Utility serial numbers)n/an/a
1979 6 000,001n/a(see Utility serial numbers)n/an/a
1980 6 108,971n/a(see Utility serial numbers)n/an/a
1981 6 221,957n/a(see Utility serial numbers)n/an/a
1982 6 336,510n/a(see Utility serial numbers)n/an/a
1983 6 454,954n/a(see Utility serial numbers)n/an/a
1984 6 567,457n/a(see Utility serial numbers)n/an/a
1985 6 688,174n/a(see Utility serial numbers)n/an/a
1986 6 815,454n/a(see Utility serial numbers)n/an/a
1987 7 000,001n/a(see Utility serial numbers)n/an/a
1988 7 140,321n/a(see Utility serial numbers)n/an/a
1989 7 292,671n/a(see Utility serial numbers)n/an/a
1990 7 459,413n/a(see Utility serial numbers)n/an/a
1991 7 636,609n/a(see Utility serial numbers)n/an/a
1992 7 815,501n/a(see Utility serial numbers)n/an/a
10/01/92n/an/a 29 000,001 n/an/a
1993 8 000,00129 003,180 n/an/a
1994 8 176,04729 016,976 n/an/a
1995 8 367,54229 032,919 n/an/a
06/08/95n/an/a n/an/a 60 000,001
1996 8 581,73929 48,507 60 009,474
1997 8 777,99129 64,454 60 034,487
12/30/979 000,001n/an/a n/an/a
1998 n/an/a 29 081,426 60 70,310
1999 9 219,72329 098,302 60 113,787
2000 9 471,93229 116,135 60 173,038
2001 9 740,75629 134,406 60 256,730
2002 10 032,44329 152,739 60 343,564
2003 10 334,16429 173,499 60 437,173
2004 10 746,29729 196,307 60 532,638
2005 11 023,30529 220,177 60 639,450
2006 11 320,17829 245,663 60 754,464
2007 11 646,74329 270,581 60 877,460
2008 12 5,84129 294,213 61 9,389
2009 12 317,88429 313,375 61 203,947
2010 12 655,47529 348,400 61 335,046
2011 12 930,16629 372,670 61 460,301
2012 13 374,48729 395,318 61 631,245
2013 13 694,74829 442,191 61 848,274
2014 13 998,97529 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 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" 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:


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 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/

Top

Skip menu navigation Home > Listing of Viewable PTMT Reports


KEY: search,file,e Biz=online business system fees=fees forms=formshelp=help laws and regs=laws/regulations definition=definition (glossary)

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. While we cannot promise to accommodate all requests, your suggestions will be considered and may lead to other improvements on the website.

 


|.HOME | SITE INDEX| SEARCH | eBUSINESS | HELP | PRIVACY POLICY