The file, "naics_08.zip" contains a compressed data file which includes a concordance between the U.S. Patent Classification System (USPCS)(as of December 31, 2008) and 26 unique product fields based on the 2002 North American Industry Classification System (NAICS). See Table 1, below, for a list of those product fields. The concordance file is an ASCII comma delimited file. This file format is ideal for importing the data into a database software program. Note that while many spreadsheet software packages may be capable of importing ASCII delimited files, this file is probably too large to be handled successfully by many of those spreadsheet software packages. The concordance is contained in the file "naics_08.zip" which is a compressed data file. The file record (line) format is as follows: field 1: USPCS Class (3 characters, with leading zeroes). field 2: USPCS Subclass (6 characters with leading zeroes). Note that there is an implied decimal point following the third character. Subclasses with letter suffixes will generally have the suffixes placed in the rightmost columns of the field. field 3: NAICS -based product field sequence number (two characters). See Table 1, below. field 4: OTAF code for the NAICS-based product field (two to four characters). This code indicates the approximate NAICS area to which the USPCS Class/Subclass has been concorded. See Table 1, below. If a USPCS Class/Subclass has been concorded to more than one NAICS-based product field, additional records identifying those relationships will be included in the file. Questions regarding this file 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 -------------------------------------------------------------------------- TABLE 1 - NORTH AMERICAN INDUSTRY CLASSIFICATION SYSTEM (2002) PRODUCT FIELDS Sequence OTAF Number Code PRODUCT FIELD TITLE NAICS CODE ________ ______ ____________________________________________________ ________________ 1 311 Food 311 2 312 Beverage and Tobacco Products 312 3 313+ Textiles, Apparel and Leather 313-316 4 321 Wood Products 321 5 322+ Paper, Printing and support activities 322,323 6 R1 Chemicals 325 7 3251 Basic Chemicals 3251 8 3252 Resin, Synthetic Rubber, and Artificial and Synthetic Fibers and Filaments 3252 9 3254 Pharmaceutical and Medicines 3254 10 325- Other Chemical Product and Preparation 3253,3255,3256,3259 11 326 Plastics and Rubber Products 326 12 327 Nonmetallic Mineral Products 327 13 331 Primary Metal 331 14 332 Fabricated Metal Products 332 15 333 Machinery 333 16 R2 Computer and Electronic Products 334 17 3341 Computer and Peripheral Equipment 3341 18 3342 Communications Equipment 3342 19 3344 Semiconductors and Other Electronic Components 3344 20 3345 Navigational, Measuring, Electromedical, and Control Instruments 3345 21 334- Other Computer and Electronic Products 3343,3346 22 335 Electrical Equipment, Appliances, and Components 335 23 R3 Transportation Equipment 336 24 3361+ Motor Vehicles, Trailers and Parts 3361-3363 25 3364 Aerospace Product and Parts 3364 26 336- Other Transportation Equipment 3365,3366,3369 27 337 Furniture and Related Products 337 28 R4 Miscellaneous Manufacturing 339 29 3391 Medical Equipment and Supplies 3391 30 339- Other Miscellaneous 339 (except 3391) 31 R5 All Industries Product fields associated with OTAF codes R1 to R5 are combinations of other product fields.