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Each entry records the serial number, title of the invention, filing date, application number, and any amendment status to a pending application, including amendment type, date, and number when provided. Grant date and patent number are also listed for reference. The document emphasizes historical patent timelines spanning the late 19th century across electrical devices and 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Grant Date | Patent Number |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- |\n|  |  |  |  | Amendment Type | Amendment Date | Amendment Number |  |  |\n| 1. | Electric-Arc Lamp | 30.03.1885 | 160,574 |  |  |  | 09.02.1886 | 335,786 |\n| 2. | Commutator for Dynamo-Electric Machines | 06.05.1885 | 164,534 |  |  |  | 26.01.1886 | 334,823 |\n| 3. | Regulator for Dynamo-Electric Machines | 18.05.1885 | 165,793 |  |  |  | 02.03.1886 | 336,961 |\n| 4. | Regulator for Dynamo-Electric Machines | 01.06.1885 | 167,136 |  |  |  | 02.03.1886 | 336,962 |\n| 5. | Electric-Arc Lamp | 13.07.1885 | 171,416 |  |  |  | 09.02.1886 | 335,787 |\n| 6. | Dynamo-Electric Machine | 14.01.1886 | 188,538 or 188,540 | Renewed Application | 01.12.1886 | 220,370 | 22.03.1887 | 359,748 |\n| 7. | Regulator for Dynamo-Electric Machines | 14.01.1886 | 188,539 |  |  |  | 19.10.1886 | 350,954 |\n| 8. | Thermo-Magnetic Motor | 30.03.1886 | 197,115 |  |  |  | 15.01.1889 | 396,121 |\n| 9. | Commutator for Dynamo-Electric Machines | 30.04.1887 | 236,711 |  |  |  | 15.05.1888 | 382,845 |\n| 10. | Pyromagneto-Electric Generator | 26.05.1887 | 239,481 | Divisional Application | 25.05.1889 | 312,069 | 13.05.1890 | 428,057 |\n| 11. | Electro-Magnetic Motor | 12.10.1887 | 252,132 |  |  |  | 01.05.1888 | 381,968 |\n| 12. | Electrical Transmission of Power | 12.10.1887 | 252,132 | Divisional Application | 09.03.1888 | 266,755 | 01.05.1888 | 382,280 |\n| 13. | Electro-Magnetic Motor | 30.11.1887 | 256,561 |  |  |  | 01.05.1888 | 382,279 |\n| 14. | Electro-Magnetic Motor | 30.11.1887 | 256,562 |  |  |  | 01.05.1888 | 381,969 |\n| 15. | Electrical Transmission of Power | 30.11.1887 | 256,562 | Divisional Application | 09.03.1888 | 266,756 | 01.05.1888 | 382,281 |\n| 16. | System of Electrical Distribution | 23.12.1887 | 258,787 |  |  |  | 01.05.1888 | 381,970 |\n| 17. | Method of Converting and Distributing Electric Currents | 23.12.1887 | 258,787 | Divisional Application | 09.03.1888 | 266,757 | 01.05.1888 | 382,282 |\n\n\n| 18. | System of Electrical Distribution | 10.04.1888 | 270,187 |  |  |  | 02.10.1888 | 390,413 |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- |\n| 19. | Dynamo-Electric Machine | 23.04.1888 | 271,626 |  |  |  | 02.10.1888 | 390,414 |\n| 20. | Regulator for Alternate-Current Motors | 24.04.1888 | 271,682 |  |  |  | 09.10.1888 | 390,820 |\n| 21. | Dynamo-Electric Machine | 28.04.1888 | 272,153 |  |  |  | 09.10.1888 | 390,721 |\n| 22. | System of Electrical Transmission of Power | 15.05.1888 | 273,992 |  |  |  | 13.12.1892 | 487,796 |\n| 23. | Alternating Motor | 15.05.1888 | 273,993 |  |  |  | 25.02.1896 | 555,190 |\n| 24. | Electrical Transmission of Power | 15.05.1888 | 273,993 | Divisional Application | 03.12.1888 | 292,475 | 02.01.1894 | 511,915 |\n| 25. | Dynamo-Electric Machine or Motor | 15.05.1888 | 273,994 |  |  |  | 02.10.1888 | 390,415 |\n| 26. | Electro-Magnetic Motor | 20.10.1888 | 288,677 |  |  |  | 14.08.1894 | 524,426 |\n| 27. | Electrical Transmission of Power | 08.12.1888 | 293,051 |  |  |  | 26.12.1893 | 511,559 |\n| 28. | System of Electrical Power Transmission | 08.12.1888 | 293,052 |  |  |  | 26.12.1893 | 511,560 |\n| 29. | Electro-Magnetic Motor | 08.01.1889 | 295,745 |  |  |  | 25.06.1889 | 405,858 |\n| 30. | Method of Operating Electro-Magnetic Motors | 18.02.1889 | 300,220 |  |  |  | 16.04.1889 | 401,520 |\n| 31. | Method of Electrical Power Transmission | 14.03.1889 | 303,251 |  |  |  | 25.06.1889 | 405,859 |\n| 32. | Dynamo-Electric Machine | 23.03.1889 | 304,498 |  |  |  | 16.07.1889 | 406,968 |\n| 33. | Electro-Magnetic Motor | 06.04.1889 | 306,165 |  |  |  | 22.09.1891 | 459,772 |\n| 34. | Electro-Magnetic Motor | 20.05.1889 | 311,413 |  |  |  | 03.12.1889 | 416,191 |\n| 35. | Method of Operating Electro-Magnetic Motors | 20.05.1889 | 311,414 |  |  |  | 03.12.1889 | 416,192 |\n","cbCaiuky7aR0VzS4","https://ap.wps.com/l/cbCaiuky7aR0VzS4","pdf",361120,"English","# Patent Grants Overview\n## Key Fields per Patent Entry\n## Grant Dates and Patent Numbers","[{\"question\":\"What information fields are included for each Tesla patent entry?\",\"answer\":\"Each row includes serial number, invention title, filing date, application number, amendment details (type/date/number when present), grant date, and patent number.\"},{\"question\":\"How are amendment details represented in the table?\",\"answer\":\"Amendment information is shown under fields for amendment type, amendment date, and amendment number, and can be blank when no details are listed.\"},{\"question\":\"What period of years do the patent grant dates cover?\",\"answer\":\"Grant dates span from the early 1880s/1886 period through later 1890s entries, as shown in the grant date and patent number columns.\"}]","List of Nikola Tesla's Patents Granted in the USA | PDF",1792700344,48]