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U.S. PATENT AND TRADEMARK OFFICE
Patent Technology Monitoring Team (PTMT)

Independent Inventors By State By Year
Utility Patents Report
JANUARY 1975 -- DECEMBER 2015

COUNTS DISTRIBUTED BY CALENDAR YEAR OF GRANT

Independent Inventors By State By Year
Utility Patents Report
Patents Granted: 1975 - 2015
A Patent Technology Monitoring Team Report

Description of the Report

An independent inventor (also called an individual inventor), for purposes of this report, is a person whose patent, at the time of grant, has ownership that is unassigned or assigned to an individual (i.e., ownership of the patent is not assigned to an organization).

The counts in this table represent the number of times inventors from particular states are named on unassigned patents or on patents assigned to individuals. If a patent has more than one inventor, each inventor is counted according to his or her state of residence at the time of patent grant. 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 JANUARY 1975 -- DECEMBER 2015. Counts of inventors and their patent grants are broken out by calendar year.

The source of the data used for this report is the TAF database maintained by the U.S. Patent and Trademark Office.

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.

Number 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 at the time of patent grant. If an inventor has more than one patent he or she is counted once for each patent.
Counts of inventors and their patent grants are broken out by calendar year of grant and are those granted: JANUARY 1975 -- DECEMBER 2015.
State Code State Name PRE_1999 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 Total
AL ALABAMA 2272 158 141 176 176 154 144 114 127 75 77 87 125 116 120 137 118 129 4446
AK ALASKA 540 45 27 38 40 33 28 38 32 13 11 29 19 23 21 36 38 34 1045
AZ ARIZONA 6502 415 432 419 414 407 361 305 347 293 304 259 353 367 395 416 452 468 12909
AR ARKANSAS 1264 85 85 82 79 81 62 59 54 38 39 38 68 42 71 57 63 56 2323
CA CALIFORNIA 61443 4216 4043 4016 3674 3789 3438 2857 3564 2880 2581 2626 3881 3306 3738 3914 4237 4207 122410
CO COLORADO 6425 452 439 431 452 382 340 270 344 297 232 225 367 315 386 412 436 418 12623
CT CONNECTICUT 6539 432 375 390 326 345 248 224 386 236 206 212 260 242 272 287 260 300 11540
DE DELAWARE 749 46 50 60 59 56 49 54 45 30 17 33 33 45 38 28 33 25 1450
FL FLORIDA 18099 1466 1370 1287 1204 1248 1169 1044 1044 925 846 822 1063 1110 1228 1316 1434 1363 38038
GA GEORGIA 4938 409 431 462 366 354 285 295 328 276 239 239 376 431 397 459 404 416 11105
HI HAWAII 973 53 58 71 43 41 45 35 55 38 37 27 53 38 50 58 56 56 1787
ID IDAHO 1603 139 145 135 126 130 103 79 123 87 83 75 83 88 85 104 82 96 3366
IL ILLINOIS 15640 883 917 785 769 683 616 525 615 551 432 457 556 491 533 616 670 596 26335
IN INDIANA 4836 327 367 272 257 268 219 195 200 168 147 130 233 210 234 260 267 230 8820
IA IOWA 2703 178 148 163 113 116 117 85 112 66 79 77 129 143 89 125 128 130 4701
KS KANSAS 2576 176 158 128 140 146 114 101 97 84 75 70 132 104 98 132 137 126 4594
KY KENTUCKY 2033 141 110 124 126 123 93 76 83 85 90 73 91 88 94 105 94 105 3734
LA LOUISIANA 4454 302 329 311 278 217 198 165 173 133 139 138 150 150 179 181 176 152 7825
ME MAINE 954 58 68 65 61 50 47 45 49 29 28 34 33 46 39 42 39 49 1736
MD MARYLAND 7012 489 431 425 366 327 305 256 316 274 220 294 347 298 346 371 397 398 12872
MA MASSACHUSETTS 10112 689 708 643 591 648 472 390 549 426 394 418 582 643 601 627 594 591 19678
MI MICHIGAN 14292 874 834 766 698 641 571 501 549 448 458 403 507 493 536 558 571 648 24348
MN MINNESOTA 6893 395 461 419 425 445 384 325 423 296 254 256 317 359 344 382 420 431 13229
MS MISSISSIPPI 1233 117 85 90 70 68 62 50 42 54 31 42 31 36 57 47 59 34 2208
MO MISSOURI 4866 344 325 280 361 265 194 216 187 159 168 157 194 170 185 206 229 169 8675
MT MONTANA 1423 85 81 73 79 49 46 42 44 49 43 34 43 44 47 67 46 68 2363
NE NEBRASKA 1806 73 92 88 64 74 71 76 64 75 68 53 67 73 106 85 90 86 3111
NV NEVADA 2078 232 232 246 208 220 169 182 201 137 123 110 164 143 171 206 227 225 5274
NH NEW HAMPSHIRE 1717 144 125 131 109 122 105 90 109 68 57 78 132 86 107 115 121 120 3536
NJ NEW JERSEY 13347 846 767 728 624 606 641 495 547 463 422 399 710 533 583 727 652 626 23716
NM NEW MEXICO 1821 122 113 124 107 95 95 63 88 70 76 59 111 98 108 117 85 90 3442
NY NEW YORK 26410 1482 1427 1255 1280 1106 1066 905 951 910 786 766 1057 974 1062 1178 1257 1259 45131
NC NORTH CAROLINA 5254 414 410 462 389 388 359 277 279 259 195 205 326 349 308 345 341 360 10920
ND NORTH DAKOTA 723 42 55 61 47 25 26 37 29 26 26 31 23 16 24 27 31 34 1283
OH OHIO 11690 763 589 605 637 563 523 431 502 402 424 343 532 424 449 498 573 579 20527
OK OKLAHOMA 4198 162 178 166 150 160 130 113 145 124 92 100 109 120 122 157 160 135 6521
OR OREGON 4989 292 261 317 279 286 268 232 269 270 384 296 320 253 229 280 304 299 9828
PA PENNSYLVANIA 13247 930 869 783 722 684 594 495 621 453 390 397 586 523 560 560 576 523 23513
RI RHODE ISLAND 1188 54 61 52 46 49 45 41 51 47 38 38 41 44 42 57 66 41 2001
SC SOUTH CAROLINA 2681 195 197 189 190 168 164 127 139 97 107 119 116 130 144 151 159 150 5223
SD SOUTH DAKOTA 553 39 40 39 37 28 34 29 36 24 21 26 36 42 71 62 58 43 1218
TN TENNESSEE 3563 302 259 233 230 222 205 145 193 152 132 159 169 219 218 219 251 217 7088
TX TEXAS 18621 1338 1345 1295 1179 1094 958 866 1001 869 812 770 1131 1003 1036 1192 1277 1399 37186
UT UTAH 3246 242 236 249 252 203 207 161 193 259 324 353 371 306 298 349 369 320 7938
VT VERMONT 707 55 47 71 33 35 39 30 42 32 13 23 41 24 22 29 51 29 1323
VA VIRGINIA 5881 423 417 428 385 419 312 279 327 279 256 266 365 333 356 366 368 351 11811
WA WASHINGTON 7215 389 452 445 432 436 378 311 422 382 331 386 532 436 418 513 504 592 14574
WV WEST VIRGINIA 899 55 49 44 40 38 42 28 50 36 20 31 48 28 47 47 41 56 1599
WI WISCONSIN 5465 392 392 380 367 300 309 223 265 236 231 240 277 252 270 308 272 280 10459
WY WYOMING 614 39 42 38 30 43 31 29 26 16 20 30 32 21 34 33 29 26 1133
DC DISTRICT OF COLUMBIA 814 32 35 33 26 11 23 13 15 21 18 15 19 40 35 34 41 28 1253
GU GUAM 13 4 1 1 1 0 0 0 0 1 4 1 0 0 0 1 1 3 31
MP NORTHERN MARIANA ISLANDS 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1
PR PUERTO RICO 258 14 24 10 7 17 11 9 19 17 8 12 15 19 27 10 31 24 532
AS U.S. PACIFIC ISLANDS 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
VI U.S. VIRGIN ISLANDS 44 1 3 3 1 3 2 4 1 1 3 1 3 3 1 5 2 6 87
US U.S. UNSPECIFIED REGION 23 3 0 1 0 0 0 2 2 2 2 0 0 0 0 0 0 0 35
ALL ALL STATES 329441 22053 21336 20588 19165 18461 16517 14039 16475 13738 12614 12562 17359 15890 17031 18614 19377 19196 624456


Contact Information

Questions regarding these reports should be directed to:

U.S. Patent and Trademark Office
Electronic Information Products Division - PTMT (formerly TAF Branch)
P.O. Box 1450
Alexandria, VA 22313-1450

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fax: (571) 273-0110
email: oeip@uspto.gov

address of PTMT pages at the USPTO Internet Web Site : http://www.uspto.gov/web/offices/ac/ido/oeip/taf/reports.htm
selected PTMT materials available for download at : http://www.uspto.gov/web/offices/ac/ido/oeip/taf/data/

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