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U.S. PATENT AND TRADEMARK OFFICE
Office of Electronic Information Products
Patent Technology Monitoring Division (PTMD)


Independent Inventors By State By Year
All Patents All Types Report
(December 2003)

Patents Granted: 01/01/1977 - 12/31/2003
A Patent Technology Monitoring Division Report


Description of the Report

An independent inventor, also called an individual inventor, is one whose patent, at the time of grant, is unassigned or assigned to an individual (i.e., ownership of the patent is not assigned to an organization).

The counts in this report represent the number of times inventors from particular states are named on unassigned patents or on patents assigned to individuals. If the patent has more than one inventor, each inventor is counted according to his or her state of residence. If an inventor has more than one patent he or she is counted once for each patent.

This report counts the number of times inventors from particular states are named on documents of the following type(s):
utility patents (i.e., "patents for invention"), design patents, plant patents, reissue patents, statutory invention registrations, defensive publications
granted by the U.S. Patent and Trademark Office during the period 01/01/1977 - 12/31/2003.

The source of the data used for this report is the TAF database maintained by the Office of Electronic Information Products.

Report Printing and the Use of Spreadsheet Software

This report can be printed from an Internet browser - for such printing, optimal results are usually obtained by printing in landscape orientation with minimal margins and a small text font.

Additionally, a user may import this report file into spreadsheet software such as Microsoft Excel to facilitate printing. Such spreadsheet software also may facilitate sorting and further manipulation of the data.


Counts of Independent Inventors, as Distributed by Year of Grant of Patent(s) Received
Breakout by U.S. State

The counts in this report represent the number of times inventors from particular states are named on unassigned patents or on patents assigned to individuals. If the patent has more than one inventor, each inventor is counted according to his or her state of residence. If an inventor has more than one patent he or she is counted once for each patent.
Counted patents are those granted: 01/01/1977 - 12/31/2003
State Code State Name Pre 1987 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 Total
AK ALASKA 170 15 15 27 27 44 39 52 43 30 52 52 65 60 43 49 47 41 871
AL ALABAMA 880 114 109 154 160 174 133 142 150 160 183 160 206 237 209 247 207 213 3838
AR ARKANSAS 514 52 57 74 98 94 76 78 97 93 103 87 83 112 101 109 96 100 2024
AS U.S. PACIFIC IS. 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 2
AZ ARIZONA 2394 348 339 387 364 407 387 377 393 445 413 417 569 491 526 500 472 463 9692
CA CALIFORNIA 25365 2928 2886 3446 3352 3782 3765 3784 3833 3991 4437 4160 5325 5264 5216 5061 4828 4822 96245
CO COLORADO 2255 272 287 385 377 386 452 472 474 445 538 438 564 541 540 487 517 449 9879
CT CONNECTICUT 2479 269 289 340 379 436 354 414 405 406 362 346 528 523 438 446 372 398 9184
DC DISTRICT OF COLUMBIA 389 35 27 29 32 32 41 39 35 41 28 35 56 43 37 38 29 12 978
DE DELAWARE 260 37 26 38 41 49 38 57 49 58 72 40 46 53 53 65 67 59 1108
FL FLORIDA 6430 821 831 1029 1047 1109 1170 1144 1199 1305 1447 1404 1719 1749 1723 1590 1466 1574 28757
GA GEORGIA 1760 210 173 241 324 329 342 374 375 401 426 353 537 507 522 550 473 424 8321
GU GUAM 3 0 0 3 0 1 0 1 1 2 2 2 4 4 2 6 2 0 33
HI HAWAII 320 38 52 65 83 71 61 87 73 64 70 76 70 70 76 87 51 54 1468
IA IOWA 1210 129 140 175 140 153 162 134 160 162 128 150 226 197 174 191 124 134 3889
ID IDAHO 567 55 54 119 124 98 107 105 113 108 112 125 113 162 173 163 149 159 2606
IL ILLINOIS 6596 676 625 847 771 860 793 893 840 998 973 870 1206 1083 1111 980 896 859 21877
IN INDIANA 2207 224 244 243 256 297 245 266 269 284 310 290 343 384 429 352 336 346 7325
KS KANSAS 1135 119 108 156 148 151 160 124 156 128 150 141 161 210 201 155 171 175 3749
KY KENTUCKY 758 91 81 132 106 146 110 102 135 146 124 129 151 161 133 151 141 142 2939
LA LOUISIANA 1509 233 218 250 274 264 280 282 243 244 283 260 341 334 382 344 317 252 6310
MA MASSACHUSETTS 3917 434 394 488 512 496 531 584 601 615 660 663 870 793 832 733 691 749 14563
MD MARYLAND 2794 291 255 364 305 367 423 387 428 463 429 485 545 550 480 467 416 363 9812
ME MAINE 342 52 40 51 51 40 74 83 89 88 69 53 76 74 82 70 70 52 1456
MI MICHIGAN 5859 614 596 758 776 855 807 801 904 839 845 741 893 1038 978 884 868 802 19858
MN MINNESOTA 2623 376 316 423 425 468 435 421 399 436 428 461 655 474 593 538 514 570 10555
MO MISSOURI 1850 227 185 279 269 301 315 249 308 313 313 393 441 416 403 343 420 325 7350
MS MISSISSIPPI 352 57 71 68 87 77 88 100 112 75 92 99 102 141 103 101 84 87 1896
MT MONTANA 447 101 58 96 76 86 101 100 73 120 108 83 111 94 105 86 88 53 1986
NC NORTH CAROLINA 1866 247 237 322 290 366 316 367 375 387 428 461 489 520 548 583 526 498 8826
ND NORTH DAKOTA 269 44 38 45 32 41 45 50 48 47 49 37 42 47 57 61 49 25 1026
NE NEBRASKA 802 82 77 79 93 96 107 104 117 113 86 90 104 92 112 97 82 107 2440
NH NEW HAMPSHIRE 528 64 65 84 122 103 111 104 148 154 164 135 131 165 150 147 121 135 2631
NJ NEW JERSEY 5533 615 525 701 616 704 668 797 739 713 836 839 1122 1024 946 867 730 735 18710
NM NEW MEXICO 610 93 83 98 83 94 126 134 117 130 122 126 121 139 135 135 120 104 2570
NV NEVADA 724 76 65 107 98 170 133 156 166 161 172 161 245 279 307 293 252 272 3837
NY NEW YORK 11097 1187 1049 1328 1489 1520 1375 1520 1504 1608 1628 1456 1979 1802 1769 1584 1555 1358 36808
OH OHIO 5111 531 519 589 645 680 684 664 692 708 669 672 844 936 813 791 791 771 17110
OK OKLAHOMA 1799 224 194 234 296 280 280 294 243 230 228 192 206 196 225 195 193 203 5712
OR OREGON 2067 296 219 318 299 299 257 332 281 315 352 312 384 384 366 421 392 336 7630
PA PENNSYLVANIA 5098 623 509 673 724 705 721 780 849 794 890 776 1163 1091 1011 901 840 803 18951
PR PUERTO RICO 128 18 13 21 16 14 12 11 16 13 12 13 13 25 29 11 11 18 394
RI RHODE ISLAND 505 48 46 85 57 85 83 90 86 87 95 105 91 81 82 65 62 81 1834
SC SOUTH CAROLINA 902 123 105 156 153 156 215 195 199 161 217 156 261 236 245 236 237 198 4151
SD SOUTH DAKOTA 216 38 25 20 33 26 35 44 37 36 27 41 32 47 50 47 43 33 830
TN TENNESSEE 1306 150 196 221 228 239 264 245 221 231 274 252 337 373 327 292 296 282 5734
TX TEXAS 6730 897 815 1018 1119 1175 1142 1164 1244 1265 1370 1163 1564 1572 1608 1490 1314 1238 27888
US UNITED STATES 0 0 0 0 0 3 11 4 4 1 5 4 2 5 1 1 0 1 42
UT UTAH 1136 135 128 167 178 219 202 258 240 230 245 224 322 287 286 287 292 233 5069
VA VIRGINIA 2191 242 224 319 369 401 359 359 362 393 389 349 500 485 500 519 449 470 8880
VI VIRGIN (U.S.) ISLANDS 22 2 2 0 2 2 1 2 2 3 2 1 2 1 3 3 1 4 55
VT VERMONT 227 34 30 31 51 34 55 62 78 68 82 84 67 69 63 76 38 38 1187
WA WASHINGTON 2569 347 357 437 433 507 385 464 500 463 485 467 577 485 553 539 503 530 10601
WI WISCONSIN 1885 304 265 304 326 359 325 310 307 355 380 342 457 484 501 471 405 362 8142
WV WEST VIRGINIA 359 46 42 48 51 44 50 40 63 60 54 54 66 63 55 49 48 41 1233
WY WYOMING 249 34 19 19 32 41 27 35 52 71 34 37 37 44 48 43 32 49 903
  U.S. TOTAL 129315 15318 14323 18091 18439 19936 19478 20237 20647 21257 22452 21063 27164 26697 26455 24997 23294 22602 491765
  ALL COUNTRIES 189809 21827 20535 25822 26227 27944 26582 27009 27639 28423 29687 28608 37124 36713 36860 35869 34060 33461 694199

Independent Inventors By State By Year, All Patents All Types Report (December 2003)
Patents Granted: 01/01/1977 - 12/31/2003
A Patent Technology Monitoring Division Report


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