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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 2009

COUNTS DISTRIBUTED BY CALENDAR YEAR OF GRANT

Independent Inventors By State By Year
Utility Patents Report
Patents Granted: 1975 - 2009
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 2009. Counts of 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.
Counted patents are broken out by calendar year and are those granted: JANUARY 1975 -- DECEMBER 2009
State Code State Name PRE_1993 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 Total
AL ALABAMA 1503 114 95 124 140 123 173 158 141 176 176 154 144 114 127 75 77 87 3701
AK ALASKA 330 36 34 18 34 37 51 45 27 38 40 33 28 38 32 13 11 29 874
AZ ARIZONA 4421 308 310 360 338 323 442 415 432 419 414 407 361 305 347 294 304 259 10459
AR ARKANSAS 859 57 76 70 70 69 63 85 85 82 79 81 62 59 54 38 39 38 1966
CA CALIFORNIA 41774 2880 2967 3010 3554 3174 4097 4216 4043 4016 3674 3789 3438 2857 3564 2880 2581 2626 99140
CO COLORADO 4073 364 372 371 427 353 465 452 439 431 451 382 340 270 344 297 232 225 10288
CT CONNECTICUT 4512 327 326 344 305 296 430 432 375 390 326 346 248 224 388 238 206 212 9925
DE DELAWARE 483 47 40 52 55 35 37 46 50 60 59 56 49 54 45 30 17 33 1248
FL FLORIDA 11578 919 948 974 1154 1136 1395 1466 1370 1287 1204 1248 1169 1044 1044 927 846 822 30531
GA GEORGIA 3120 261 264 278 310 280 428 409 431 462 366 354 285 295 328 276 239 238 8624
HI HAWAII 647 63 51 47 45 60 60 53 58 71 43 41 45 35 55 38 37 27 1476
ID IDAHO 1071 83 79 86 85 103 96 139 145 135 126 130 103 79 123 87 83 75 2828
IL ILLINOIS 11048 705 629 772 813 704 978 883 917 785 769 683 616 525 615 551 432 458 22883
IN INDIANA 3452 199 201 213 250 234 288 327 367 272 257 268 219 195 200 168 147 130 7387
IA IOWA 1969 78 119 125 96 126 191 178 148 163 113 116 117 85 112 66 79 77 3958
KS KANSAS 1905 88 123 91 120 110 139 176 158 128 140 146 114 101 97 84 75 70 3865
KY KENTUCKY 1401 82 118 107 90 109 126 141 110 124 126 123 93 76 83 85 90 73 3157
LA LOUISIANA 3044 233 212 199 245 234 287 302 329 311 278 217 198 165 173 133 139 138 6837
ME MAINE 604 62 66 64 54 38 66 58 68 65 61 50 47 45 49 29 28 34 1488
MD MARYLAND 4699 323 350 373 362 443 463 489 431 425 366 327 305 256 316 274 220 294 10716
MA MASSACHUSETTS 6792 472 494 511 562 577 720 689 707 643 591 648 472 390 549 426 394 418 16055
MI MICHIGAN 10199 646 726 680 676 617 749 874 834 766 698 641 571 501 549 448 458 403 21036
MN MINNESOTA 4708 331 321 305 343 386 499 395 461 419 425 445 384 325 423 296 254 256 10976
MS MISSISSIPPI 794 75 80 54 73 73 84 117 85 90 70 68 62 50 42 54 31 42 1944
MO MISSOURI 3299 192 235 216 246 328 351 344 325 280 361 265 194 216 187 160 168 157 7524
MT MONTANA 950 79 61 100 77 65 91 85 81 73 79 49 46 42 44 49 43 34 2048
NE NEBRASKA 1290 88 94 97 69 76 92 73 92 88 64 74 71 76 64 75 68 53 2604
NV NEVADA 1271 114 120 119 132 128 194 232 232 246 208 220 169 182 201 137 123 110 4138
NH NEW HAMPSHIRE 1039 82 119 124 129 107 117 144 125 131 109 122 105 90 110 68 57 78 2856
NJ NEW JERSEY 9286 605 569 577 680 724 913 846 767 728 624 606 641 495 547 463 422 399 19892
NM NEW MEXICO 1194 112 89 102 107 112 105 122 113 124 107 95 95 63 88 70 76 59 2833
NY NEW YORK 18667 1148 1237 1296 1305 1166 1599 1482 1427 1255 1280 1106 1066 905 951 910 786 766 38352
NC NORTH CAROLINA 3282 278 295 301 340 367 391 414 410 462 389 388 359 277 279 259 195 205 8891
ND NORTH DAKOTA 483 45 43 44 42 30 36 42 55 61 47 25 26 37 29 26 26 31 1128
OH OHIO 8447 519 529 519 520 503 657 763 589 605 637 563 523 431 502 404 424 343 17478
OK OKLAHOMA 3131 191 179 176 188 168 166 162 178 166 150 160 130 113 145 124 92 100 5719
OR OREGON 3551 232 221 224 241 232 289 292 261 317 279 286 268 232 269 270 384 296 8144
PA PENNSYLVANIA 9117 590 676 610 706 621 933 930 869 783 722 684 594 495 621 453 390 397 20191
RI RHODE ISLAND 777 64 63 68 73 79 64 54 61 52 46 49 45 41 51 47 38 38 1710
SC SOUTH CAROLINA 1722 154 169 129 178 123 208 195 197 189 190 168 164 127 139 97 107 119 4375
SD SOUTH DAKOTA 375 31 33 24 23 35 32 39 40 39 37 28 34 29 36 24 21 26 906
TN TENNESSEE 2342 184 182 171 217 188 279 302 259 233 230 222 205 145 193 152 132 159 5795
TX TEXAS 12267 907 985 1035 1149 975 1306 1338 1345 1295 1179 1094 958 866 1001 869 812 770 30151
UT UTAH 2018 213 177 182 198 186 273 242 236 249 252 203 207 161 193 259 324 353 5926
VT VERMONT 388 36 57 50 61 71 44 55 47 71 33 35 39 30 42 32 13 23 1127
VA VIRGINIA 3947 290 296 312 316 292 430 423 417 428 385 419 312 279 327 279 256 266 9674
WA WASHINGTON 4861 366 410 366 377 373 465 389 452 445 432 436 378 311 422 382 331 386 11582
WV WEST VIRGINIA 646 32 41 46 36 44 54 55 49 44 40 38 42 28 50 36 20 31 1332
WI WISCONSIN 3678 253 259 292 328 287 368 392 392 380 367 300 309 223 265 237 231 240 8801
WY WYOMING 428 21 40 41 22 27 35 39 42 38 30 43 31 29 26 16 20 30 958
DC DISTRICT OF COLUMBIA 615 32 30 36 27 28 46 32 35 33 26 11 23 13 15 21 18 15 1056
GU GUAM 5 1 1 0 1 1 4 4 1 1 1 0 0 0 0 1 4 1 26
MP NORTHERN MARIANA ISLANDS 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1
PR PUERTO RICO 197 8 13 10 10 8 12 14 24 10 7 17 11 9 19 17 8 12 406
AS U.S. PACIFIC ISLANDS 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 2
VI U.S. VIRGIN ISLANDS 35 2 2 1 1 1 2 1 3 3 1 3 2 4 1 1 3 1 67
US U.S. UNSPECIFIED REGION 9 2 3 1 3 3 2 2 0 1 0 0 0 2 2 2 2 0 34
ALL ALL STATES 224304 15624 16229 16497 18003 16989 21885 22052 21335 20588 19164 18462 16517 14039 16478 13747 12614 12562 517089


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

tel: (571) 272-5600
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/tafp.html
selected PTMT files available for download at : http://www.uspto.gov/web/offices/ac/ido/oeip/taf/data/


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