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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
Utility Patents Report
(December 2003)

Patents Granted: 01/01/1975 - 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")
granted by the U.S. Patent and Trademark Office during the period 01/01/1975 - 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: 01/01/1975 - 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 192 13 12 26 23 36 29 36 34 18 34 37 51 45 28 39 40 33 726
AL ALABAMA 826 86 89 118 124 151 109 114 95 124 140 123 173 158 141 177 176 154 3078
AR ARKANSAS 506 40 47 61 81 73 53 57 76 70 70 69 63 85 84 81 79 81 1676
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 2464 303 311 359 296 351 336 308 310 360 338 323 442 415 432 419 414 407 8588
CA CALIFORNIA 25369 2434 2356 2917 2721 2949 2951 2880 2967 3010 3554 3174 4097 4216 4045 4015 3674 3790 81119
CO COLORADO 2239 230 248 331 325 321 379 364 372 371 427 353 465 452 439 431 452 382 8581
CT CONNECTICUT 2687 247 250 302 333 376 317 327 326 344 305 296 430 432 375 392 326 346 8411
DC DISTRICT OF COLUMBIA 443 28 25 26 29 28 36 32 30 36 27 28 46 32 35 33 26 11 951
DE DELAWARE 289 28 22 33 37 41 32 47 40 52 55 35 37 46 50 60 59 56 1019
FL FLORIDA 6480 706 730 901 875 900 986 919 948 974 1154 1136 1395 1466 1368 1287 1204 1247 24676
GA GEORGIA 1821 174 150 203 267 247 258 261 264 278 310 280 428 409 431 464 366 354 6965
GU GUAM 3 0 0 1 0 1 0 1 1 0 1 1 4 4 1 1 1 0 20
HI HAWAII 346 33 46 54 67 50 51 63 51 47 45 60 60 53 58 71 43 41 1239
IA IOWA 1219 112 123 150 114 117 134 78 119 125 96 126 191 178 149 163 113 116 3423
ID IDAHO 590 51 49 113 100 83 85 83 79 86 85 103 96 139 145 135 126 130 2278
IL ILLINOIS 7103 604 543 759 651 736 646 705 629 772 813 704 978 883 918 787 769 683 19683
IN INDIANA 2238 181 189 208 213 223 200 199 201 213 250 234 288 327 366 271 257 268 6326
KS KANSAS 1213 99 91 135 114 124 129 88 123 91 120 110 139 176 158 128 140 146 3324
KY KENTUCKY 840 77 66 113 92 121 92 82 118 107 90 109 126 141 110 124 126 124 2658
LA LOUISIANA 1674 214 200 230 242 235 249 233 212 199 245 234 287 302 329 311 278 217 5891
MA MASSACHUSETTS 4225 395 362 456 446 445 462 472 494 511 562 577 720 689 707 643 591 649 13406
MD MARYLAND 3027 254 228 329 265 264 332 323 350 373 362 443 463 489 429 424 366 327 9048
ME MAINE 346 46 35 45 43 34 55 62 66 64 54 38 66 58 68 65 61 49 1255
MI MICHIGAN 6302 554 536 677 676 732 722 646 726 680 676 617 749 874 838 768 698 641 18112
MN MINNESOTA 2665 313 275 369 347 392 347 331 321 305 343 386 499 395 462 419 425 446 9040
MO MISSOURI 1974 197 152 241 223 254 258 192 235 216 246 328 351 344 325 279 361 265 6441
MS MISSISSIPPI 412 45 61 61 82 60 73 75 80 54 73 73 84 117 81 89 70 68 1658
MT MONTANA 480 98 52 93 69 74 84 79 61 100 77 65 91 85 81 72 79 49 1789
NC NORTH CAROLINA 1818 210 194 279 230 302 249 278 295 301 340 367 391 414 411 462 389 388 7318
ND NORTH DAKOTA 273 40 30 41 27 35 37 45 43 44 42 30 36 42 55 61 47 25 953
NE NEBRASKA 815 72 67 77 84 80 95 88 94 97 69 76 92 73 91 88 64 75 2197
NH NEW HAMPSHIRE 555 54 63 77 113 83 94 82 119 124 129 107 117 144 125 131 109 122 2348
NJ NEW JERSEY 5968 533 466 644 522 602 551 605 569 577 680 724 913 846 770 727 624 607 16928
NM NEW MEXICO 679 90 68 89 78 77 113 112 89 102 107 112 105 122 113 124 107 96 2383
NV NEVADA 716 61 61 95 84 139 115 114 120 119 132 128 194 232 232 246 208 217 3213
NY NEW YORK 11752 1056 923 1196 1275 1319 1146 1148 1237 1296 1305 1166 1599 1482 1423 1254 1280 1106 32963
OH OHIO 5422 466 449 492 519 529 570 519 529 519 520 503 657 763 588 605 637 562 14849
OK OKLAHOMA 1897 192 157 201 239 230 215 191 179 176 188 168 166 162 178 166 150 160 5015
OR OREGON 2141 250 190 268 244 241 217 232 221 224 241 232 289 292 261 317 279 286 6425
PA PENNSYLVANIA 5710 547 439 598 621 586 608 590 676 610 706 621 933 930 869 784 722 683 17233
PR PUERTO RICO 124 8 13 20 9 13 10 8 13 10 10 8 12 14 24 10 7 17 330
RI RHODE ISLAND 459 38 35 73 43 67 62 64 63 68 73 79 64 54 61 52 46 49 1450
SC SOUTH CAROLINA 942 111 93 135 138 131 172 154 169 129 178 123 208 195 196 189 190 168 3621
SD SOUTH DAKOTA 236 33 23 17 25 14 27 31 33 24 23 35 32 39 40 39 37 28 736
TN TENNESSEE 1254 127 151 189 200 193 228 184 182 171 217 188 279 302 259 233 230 223 4810
TX TEXAS 7058 779 694 890 918 970 957 907 985 1035 1149 975 1306 1338 1345 1295 1179 1093 24873
US UNITED STATES 0 0 0 0 0 2 7 2 3 1 3 3 2 2 0 1 0 1 27
UT UTAH 1167 107 108 142 148 192 154 213 177 182 198 186 273 242 236 249 252 203 4429
VA VIRGINIA 2332 211 182 285 315 316 306 290 296 312 316 292 430 423 421 428 385 420 7960
VI VIRGIN (U.S.) ISLANDS 27 1 2 0 2 2 1 2 2 1 1 1 2 1 3 3 1 3 55
VT VERMONT 216 27 17 27 38 20 43 36 57 50 61 71 44 55 47 71 33 35 948
WA WASHINGTON 2734 303 304 388 383 416 333 366 410 366 377 373 465 389 452 446 432 436 9373
WI WISCONSIN 2055 271 231 273 279 306 263 253 259 292 328 287 368 392 392 381 367 300 7297
WV WEST VIRGINIA 402 42 36 43 41 36 46 32 41 46 36 44 54 55 48 44 40 38 1124
WY WYOMING 277 30 14 17 26 37 27 21 40 41 22 27 35 39 42 38 30 43 806
  U.S. TOTAL 135003 13221 12258 15867 15456 16356 16051 15624 16229 16497 18003 16989 21885 22052 21335 20592 19165 18464 431047
  ALL COUNTRIES 205697 19216 17955 23016 22555 23495 22357 21578 22330 22646 24176 23483 30390 30744 30041 29770 28139 27477 625065

Independent Inventors By State By Year, Utility Patents Report (December 2003)
Patents Granted: 01/01/1975 - 12/31/2003
A Patent Technology Monitoring Division Report


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U.S. Patent and Trademark Office
Office of Electronic Information Products - PTMD
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