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U.S. PATENT AND TRADEMARK OFFICE
Electronic Information Products Division
Patent Technology Monitoring Team (PTMT)

U.S. GOVERNMENT PATENTS
2004

- this report has been prepared with support from the National Science Foundation -

Table 1

UTILITY PATENTS ASSIGNED TO U.S. GOVERNMENT INSTITUTIONS,
CALENDAR YEAR 1963-2004 PATENT GRANTS,
AS DISTRIBUTED BY SIC-BASED PRODUCT FIELD AND YEAR OF GRANT

PATENTS COUNTED USING FRACTIONAL COUNTING METHOD (see Explanation of Data)

(patent ownership is determined by the first-named assignee listed on a patent)

- Explanation of Data -

Number of Utility Patents Granted, 1963 to 2004,
As Distributed By SIC-Based Product Field and Calendar Year of Grant
(patents counted using fractional counting method)
SIC-based
Product Field 		SIC-based
Product Field Title 		Pre-1991 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 Total
                                   
SIC 20. FOOD AND KINDRED PRODUCTS 305 6 8 7 3 2   2 4 4 6 3 2 6 2 358
SIC 22. TEXTILE MILL PRODUCTS 311 2 5 6 7 6 3 6 2 3 1 1   2   353
SIC 28. CHEMICALS AND ALLIED PRODUCTS 5419 163 218 209 207 171 176 229 275 257 189 233 195 193 198 8331
SIC 281,282,284-289. ..CHEMICALS, EXCEPT DRUGS + MEDICINES 4981 129 163 152 145 111 107 120 139 135 106 139 109 109 110 6753
SIC 281,286. ....BASIC INDUSTRIAL INORGANIC + ORGANIC CHEMISTRY 2941 54 79 74 77 60 49 55 62 72 52 71 51 51 57 3803
SIC 281. ......INDUSTRIAL INORGANIC CHEMISTRY 1194 16 27 9 21 14 11 12 9 12 11 11 4 7 14 1370
SIC 286. ......INDUSTRIAL ORGANIC CHEMISTRY 1747 38 52 65 56 46 39 44 54 59 41 60 47 44 43 2433
SIC 282. ....PLASTICS MATERIALS + SYNTHETIC RESINS 370 20 27 28 21 13 21 16 13 15 12 13 12 8 8 596
SIC 287. ....AGRICULTURAL CHEMICALS 301 12 20 21 20 21 16 31 36 23 23 28 23 22 22 616
SIC 284,285,289. ....ALL OTHER CHEMICALS 1369 43 38 29 27 18 22 18 29 26 19 28 23 29 24 1738
SIC 284. ......SOAPS, DETERGENTS, CLEANERS, PERFUMES, COSMETICS + TOILETRIES 73 1 1 2 1 3 1 1 1 3 2 2 4 1 1 94
SIC 285. ......PAINTS, VARNISHES, LACQUERS, ENAMELS + ALLIED PRODUCTS 117 3 4 2 3 2 5 2 5 2 1 2 2 6 3 156
SIC 289. ......MISCELLANEOUS CHEMICAL PRODUCTS 1179 39 33 25 24 13 16 16 23 21 17 25 18 22 20 1488
SIC 283. ..DRUGS AND MEDICINES 438 35 55 58 63 60 69 109 136 122 84 94 86 84 89 1578
SIC 13,29. PETROLEUM + NATURAL GAS EXTRACTION + REFINING 143 6 2 1 4   2 2 1 1 1 2 4 3 2 173
SIC 30. RUBBER + MISCELLANEOUS PLASTICS PRODUCTS 691 24 30 30 35 25 25 19 18 23 21 18 16 18 14 1005
SIC 32. STONE, CLAY, GLASS AND CONCRETE PRODUCTS 505 33 28 23 27 26 24 28 18 26 20 17 14 18 16 825
SIC 33, 3462, 3463. PRIMARY METALS 577 12 10 20 16 17 14 10 10 11 13 9 13 8 7 745
SIC 331, 332, 3399, 3462. ..PRIMARY FERROUS PRODUCTS 184 3 2 5 2 4 2 3 4 3 4 4 4 2 3 226
SIC 333-336, 339 (EXCEPT 3399), 3463. ..PRIMARY + SECONDARY NON-FERROUS METALS 393 9 8 15 14 13 11 8 7 8 9 6 9 6 5 519
SIC 34 (EXCEPT 3462,3463,348). FABRICATED METAL PRODUCTS 2045 62 66 61 48 45 25 29 27 34 25 26 32 29 31 2583
SIC 35. MACHINERY, EXCEPT ELECTRICAL 4719 120 154 144 138 125 98 98 102 127 133 98 93 95 97 6341
SIC 351. ..ENGINES + TURBINES 293 8 8 9 10 4 3 4 5 4 6 5 9 6 3 378
SIC 352. ..FARM + GARDEN MACHINERY + EQUIPMENT 132 4 6 2 4 4 3 2 3 6 3 3 3 5 4 182
SIC 353. ..CONSTRUCTION, MINING + MATERIAL HANDLING MACHINERY + EQUIPMENT 434 7 12 8 8 8 7 7 6 3 13 8 15 6 2 543
SIC 354. ..METAL WORKING MACHINERY + EQUIPMENT 472 20 17 13 9 5 5 11 3 10 4 5 3 6 3 584
SIC 357. ..OFFICE COMPUTING + ACCOUNTING MACHINES 830 25 27 42 42 42 34 32 50 47 59 40 31 42 45 1386
SIC 355, 356, 358, 359. ..OTHER MACHINERY, EXCEPT ELECTRICAL 2558 57 84 70 65 62 47 43 36 58 48 37 32 30 40 3268
SIC 355. ....SPECIAL INDUSTRY MACHINERY, EXCEPT METAL WORKING MACHINERY 1135 17 30 30 21 27 19 15 10 18 18 13 13 14 17 1396
SIC 356. ....GENERAL INDUSTRIAL MACHINERY + EQUIPMENT 1019 28 36 30 31 21 20 18 17 25 21 13 13 12 15 1319
SIC 358. ....REFRIGERATION + SERVICE INDUSTRY MACHINERY 282 8 14 9 9 9 5 7 7 12 5 5 4 5 5 386
SIC 359. ....MISCELLANEOUS MACHINERY, EXCEPT ELECTRICAL 122 4 3 2 4 6 3 3 2 3 4 6 2   2 166
SIC 36, 3825. ELECTRICAL AND ELECTRONIC MACHINERY, EQUIPMENT AND SUPPLIES 12680 411 346 350 407 327 279 239 243 233 259 256 255 216 217 16720
SIC 361-364,369,3825. ..ELECTRICAL EQUIPMENT, EXCEPT COMMUNICATIONS EQUIPMENT 3686 108 120 98 121 81 75 51 55 49 53 76 66 54 51 4744
SIC 361, 3825. ....ELECTRICAL TRANSMISSION + DISTRIBUTION EQUIPMENT 1916 52 72 51 64 39 41 29 29 28 22 30 38 28 22 2460
SIC 362. ....ELECTRICAL INDUSTRIAL APPARATUS 1047 29 22 25 30 20 16 17 18 12 18 23 15 10 16 1316
SIC 363, 364, 369. ....OTHER ELECTRICAL MACHINERY, EQUIPMENT + SUPPLIES 723 27 26 22 27 23 19 6 9 9 13 22 13 16 14 968
SIC 363. ......HOUSEHOLD APPLIANCES 80 4 1 2 4 2 2   1 3 1 1 1 1 2 105
SIC 364. ......ELECTRICAL LIGHTING + WIRING EQUIPMENT 197 4 6 9 3 7 3   1 1 4 6 3 4 3 248
SIC 369. ......MISCELLANEOUS ELECTRICAL MACHINERY, EQUIPMENT + SUPPLIES 446 20 19 11 21 14 14 6 7 6 9 16 9 11 9 614
SIC 365-367. ..COMMUNICATION EQUIPMENT + ELECTRONIC COMPONENTS 8995 303 227 252 286 246 204 187 188 185 206 181 190 162 166 11976
SIC 365. ....RADIO + TELEVISION RECEIVING EQUIPMENT EXCEPT COMMUNICATION TYPES 425 8 6 5 5 5 7 1 3 5 4 3 1 2 3 480
SIC 366-367. ....ELECTRONIC COMPONENTS + ACCESSORIES + COMMUNICATIONS EQUIPMENT 8570 295 221 247 281 241 197 186 186 180 202 178 189 161 163 11496
SIC 37,348. TRANSPORTATION EQUIPMENT 4178 125 88 102 88 87 52 90 81 69 78 109 104 93 62 5406
SIC 348,371,373-376,379. ..MOTOR VEHICLES + OTHER TRANSPORTATION EQUIPMENT 3460 110 74 78 70 77 45 83 70 54 69 96 80 78 58 4502
SIC 371. ....MOTOR VEHICLES + MOTOR VEHICLE EQUIPMENT 204 3 7 4 7 5 9 6 9 9 8 4 6 5 4 290
SIC 376. ....GUIDED MISSILES + SPACE VEHICLES + PARTS 404 14 13 8 7 7 2 2 9 1 5 13 9 7 9 510
SIC 373-375,379(EXCEPT 3795). ....OTHER TRANSPORTATION EQUIPMENT 331 7 7 18 14 24 10 22 8 10 20 15 14 20 20 540
SIC 373. ......SHIP + BOAT BUILDING + REPAIRING 235 6 4 14 13 23 8 21 6 8 19 11 14 19 19 416
SIC 374. ......RAILROAD EQUIPMENT 14 2   3 1   1 1       1       23
SIC 375. ......MOTORCYCLES, BICYCLES + PARTS 6                             8
SIC 379(EXCEPT 3795). ......MISCELLANEOUS TRANSPORTATION EQUIPMENT 76   2 2 1     1 2 2 1 3   2 1 94
SIC 348, 3795. ....ORDNANCE EXCEPT MISSILES 2521 86 47 48 42 40 25 52 44 33 36 63 52 46 26 3162
SIC 372. ..AIRCRAFT + PARTS 719 15 14 24 18 10 6 7 12 15 9 14 23 15 3 903
SIC 38 (EXCEPT 3825). PROFESSIONAL + SCIENTIFIC INSTRUMENTS 6111 193 187 187 244 165 195 161 215 172 162 153 168 173 160 8644
SIC OTHER ALL OTHER SIC'S 964 27 20 29 35 32 31 32 33 24 21 31 18 30 24 1351
SIC ALL ALL INDUSTRIES 38648 1183 1161 1167 1258 1028 924 944 1028 984 928 957 913 882 829 52834

 

Table 2

UTILITY PATENTS ASSIGNED TO U.S. GOVERNMENT INSTITUTIONS,
CALENDAR YEAR 1963-2004 PATENT GRANTS,
AS DISTRIBUTED BY SIC-BASED PRODUCT FIELD AND YEAR OF APPLICATION

PATENTS COUNTED USING FRACTIONAL COUNTING METHOD (see Explanation of Data)

(patent ownership is determined by the first-named assignee listed on a patent)

- Explanation of Data -

Number of Utility Patents Granted, 1963 TO 2004,
As Distributed By SIC-Based Product Field and Calendar Year of Application
(patents counted using fractional counting method)
SIC-based
Product Field 		SIC-based
Product Field Title 		Pre-1991 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 Total
                                   
SIC 20. FOOD AND KINDRED PRODUCTS 315 7 4 4 2 1 1 9 1 5 4 4 1     358
SIC 22. TEXTILE MILL PRODUCTS 318 7 6 4 5 6 3   2 1     1     353
SIC 28. CHEMICALS AND ALLIED PRODUCTS 5849 217 243 230 265 309 183 198 177 173 196 190 84 19   8331
SIC 281,282,284-289. ..CHEMICALS, EXCEPT DRUGS + MEDICINES 5284 154 160 136 137 141 113 113 109 103 117 109 63 16   6753
SIC 281,286. ....BASIC INDUSTRIAL INORGANIC + ORGANIC CHEMISTRY 3074 84 87 72 60 68 57 54 54 51 61 49 30 4   3803
SIC 281. ......INDUSTRIAL INORGANIC CHEMISTRY 1228 24 17 16 10 8 12 15 8 7 9 10 6     1370
SIC 286. ......INDUSTRIAL ORGANIC CHEMISTRY 1846 59 70 56 50 60 45 40 45 43 52 40 23 4   2433
SIC 282. ....PLASTICS MATERIALS + SYNTHETIC RESINS 416 19 29 15 18 22 16 9 12 14 12 8 10 1   596
SIC 287. ....AGRICULTURAL CHEMICALS 341 20 22 23 38 36 20 24 18 16 21 27 9 3   616
SIC 284,285,289. ....ALL OTHER CHEMICALS 1453 31 23 26 22 16 21 27 26 23 24 26 16 9   1738
SIC 284. ......SOAPS, DETERGENTS, CLEANERS, PERFUMES, COSMETICS + TOILETRIES 77 1     4 2   4 3 1 4 1       94
SIC 285. ......PAINTS, VARNISHES, LACQUERS, ENAMELS + ALLIED PRODUCTS 124 5 3 3 2 2 3 5 1 1 2 5 3 2   156
SIC 289. ......MISCELLANEOUS CHEMICAL PRODUCTS 1252 26 20 24 17 12 18 19 22 21 19 21 13 7   1488
SIC 283. ..DRUGS AND MEDICINES 565 64 83 95 129 168 71 85 68 71 79 81 21 3   1578
SIC 13,29. PETROLEUM + NATURAL GAS EXTRACTION + REFINING 152   2 3   1 5 1     3 5 1     173
SIC 30. RUBBER + MISCELLANEOUS PLASTICS PRODUCTS 742 26 39 27 23 24 16 27 22 16 18 14 12 2   1005
SIC 32. STONE, CLAY, GLASS AND CONCRETE PRODUCTS 557 28 23 30 25 27 31 22 23 11 20 15 10 4   825
SIC 33, 3462, 3463. PRIMARY METALS 598 12 20 19 14 15 12 9 9 14 11 7 5 2   745
SIC 331, 332, 3399, 3462. ..PRIMARY FERROUS PRODUCTS 190 3 3 4 2 3 6 2 2 7 2 2 2 1   226
SIC 333-336, 339 (EXCEPT 3399), 3463. ..PRIMARY + SECONDARY NON-FERROUS METALS 408 9 17 15 12 12 7 7 7 8 9 5 4 1   519
SIC 34 (EXCEPT 3462,3463,348). FABRICATED METAL PRODUCTS 2137 63 57 59 37 29 33 28 30 19 26 32 22 10   2583
SIC 35. MACHINERY, EXCEPT ELECTRICAL 4971 163 136 136 123 109 104 132 109 114 108 68 56 14   6341
SIC 351. ..ENGINES + TURBINES 310 8 5 10 3 5 3 7 1 6 6 9 4 1   378
SIC 352. ..FARM + GARDEN MACHINERY + EQUIPMENT 139 4 2 5 4 1 4 5 3 2 5 3 2 2   182
SIC 353. ..CONSTRUCTION, MINING + MATERIAL HANDLING MACHINERY + EQUIPMENT 446 12 10 8 6 7 7 5 7 10 16 4 4 1   543
SIC 354. ..METAL WORKING MACHINERY + EQUIPMENT 503 14 11 9 6 6 10 5 6 4 6 2 3 2   584
SIC 357. ..OFFICE COMPUTING + ACCOUNTING MACHINES 897 47 45 33 50 41 37 59 57 56 34 21 9 2   1386
SIC 355, 356, 358, 359. ..OTHER MACHINERY, EXCEPT ELECTRICAL 2676 77 64 71 55 49 43 52 35 36 41 29 35 6   3268
SIC 355. ....SPECIAL INDUSTRY MACHINERY, EXCEPT METAL WORKING MACHINERY 1183 31 23 24 22 23 7 15 18 9 16 9 14 2   1396
SIC 356. ....GENERAL INDUSTRIAL MACHINERY + EQUIPMENT 1067 32 33 31 20 15 25 24 10 18 16 14 13 3   1319
SIC 358. ....REFRIGERATION + SERVICE INDUSTRY MACHINERY 298 11 7 10 9 7 7 9 5 6 3 5 7 1   386
SIC 359. ....MISCELLANEOUS MACHINERY, EXCEPT ELECTRICAL 128 3 1 6 4 3 3 4 2 4 5 1 1     166
SIC 36, 3825. ELECTRICAL AND ELECTRONIC MACHINERY, EQUIPMENT AND SUPPLIES 13439 357 339 387 308 303 237 237 264 221 215 199 163 50   16720
SIC 361-364,369,3825. ..ELECTRICAL EQUIPMENT, EXCEPT COMMUNICATIONS EQUIPMENT 3862 126 98 113 78 79 47 63 58 51 68 60 32 10   4744
SIC 361, 3825. ....ELECTRICAL TRANSMISSION + DISTRIBUTION EQUIPMENT 2012 69 55 56 37 41 28 32 27 24 32 31 13 5   2460
SIC 362. ....ELECTRICAL INDUSTRIAL APPARATUS 1083 29 26 26 21 23 11 21 16 15 21 13 9 4   1316
SIC 363, 364, 369. ....OTHER ELECTRICAL MACHINERY, EQUIPMENT + SUPPLIES 767 27 18 31 20 15 9 10 15 13 15 17 10 1   968
SIC 363. ......HOUSEHOLD APPLIANCES 86 1 3 4 2 1   3 2 1 1 2 2     105
SIC 364. ......ELECTRICAL LIGHTING + WIRING EQUIPMENT 204 10 3 5 5 3   2 4 4 4 4 2     248
SIC 369. ......MISCELLANEOUS ELECTRICAL MACHINERY, EQUIPMENT + SUPPLIES 477 17 11 22 14 12 9 5 10 9 11 12 6 1   614
SIC 365-367. ..COMMUNICATION EQUIPMENT + ELECTRONIC COMPONENTS 9577 232 241 274 230 224 190 175 206 170 148 139 132 41   11976
SIC 365. ....RADIO + TELEVISION RECEIVING EQUIPMENT EXCEPT COMMUNICATION TYPES 437 6 6 5 8 3 4 4 4 2 3 1 1     480
SIC 366-367. ....ELECTRONIC COMPONENTS + ACCESSORIES + COMMUNICATIONS EQUIPMENT 9141 226 235 270 223 221 186 171 201 168 145 138 131 41   11496
SIC 37,348. TRANSPORTATION EQUIPMENT 4386 74 108 86 68 83 90 77 82 62 102 81 71 32 2 5406
SIC 348,371,373-376,379. ..MOTOR VEHICLES + OTHER TRANSPORTATION EQUIPMENT 3639 61 87 68 60 70 80 66 75 54 83 62 65 30 2 4502
SIC 371. ....MOTOR VEHICLES + MOTOR VEHICLE EQUIPMENT 210 4 7 5 6 12 11 7 7 3 8 4 5 1   290
SIC 376. ....GUIDED MISSILES + SPACE VEHICLES + PARTS 424 10 7 8 6 3 5 6 7 9 8 7 5 6   510
SIC 373-375,379(EXCEPT 3795). ....OTHER TRANSPORTATION EQUIPMENT 344 7 22 15 16 14 21 12 12 16 12 20 21 5 1 540
SIC 373. ......SHIP + BOAT BUILDING + REPAIRING 245 5 18 14 16 13 17 11 10 14 11 19 20 5 1 416
SIC 374. ......RAILROAD EQUIPMENT 16 1 3   1 1     1             23
SIC 375. ......MOTORCYCLES, BICYCLES + PARTS 6                             8
SIC 379(EXCEPT 3795). ......MISCELLANEOUS TRANSPORTATION EQUIPMENT 77 2 2 1   1 4 1 1 2 2 1 1     94
SIC 348, 3795. ....ORDNANCE EXCEPT MISSILES 2661 39 50 40 32 41 42 41 49 25 55 32 34 18 1 3162
SIC 372. ..AIRCRAFT + PARTS 747 13 21 18 7 13 10 11 7 8 19 20 6 3   903
SIC 38 (EXCEPT 3825). PROFESSIONAL + SCIENTIFIC INSTRUMENTS 6471 214 212 207 190 217 178 184 173 153 157 164 107 19   8644
SIC OTHER ALL OTHER SIC'S 1007 26 38 31 35 40 26 31 19 24 29 25 14 8   1351
SIC ALL ALL INDUSTRIES 40941 1192 1226 1222 1093 1162 920 955 911 813 888 804 546 159 2 52834

 

Considerations Regarding Patents As Distributed By Year of Application (Table 2)

DATA FOR THOSE APPLICATIONS WHICH WERE FILED BUT NEVER ISSUED (ROUGHLY 25% OF TOTAL FILINGS) ARE NOT INCLUDED IN THIS TABLE.

Since the average time period between filing for a patent and the issuing of the patent (i.e., the patent's "pendency") is now about 24 months (for utility patents), the patent grant data, as distributed by year of application, are incomplete for the most recent years that are displayed in this table. This is because a significant number of those applications which ultimately would become patents were still pending as of these most recent years that are displayed in this table.

Patented application data are of significant value since the date an application was filed more accurately reflects when the technology was developed. Additionally, fluctuations in data based on application date are much more likely to reflect changes in technological activity since, for the most part, such fluctuations would be immune from changes in U.S. Patent and Trademark Office (USPTO) processing such as occurred in years such as 1986 when the USPTO issued fewer patents than would have normally been expected due to a lack of funds to print patents. Note that a patent's "pendency" can be quite variable from one patent to another, thereby affecting the date of patent grant. Such variation in pendency is determined by many factors, including PTO workload (which varies between technologies), budget and manpower levels, patent printing schedules, etc. Please note that types of patent documents such as design patents, plant patents, reissue patents, statutory invention registrations, and defensive publications may have average pendency periods that differ somewhat from the pendency period for utility patents.

In this table, utility patent grant data, as distributed by year of application are approximately 93% complete for utility patent applications filed in 1999, 84% complete for applications filed in 2000, 66 percent complete for applications filed in 2001 and 44 percent complete for applications filed in 2002; data are essentially complete for utility patent applications filed prior to 1999.

 

PTMT Contacts

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U.S. Patent and Trademark Office
Electronic Information Products Division - Patent Technology Monitoring Team
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Washington, DC 20231-1450

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