Search

Nathan E. Durham

Examiner (ID: 5790, Phone: (571)272-8642 , Office: P/3765 )

Most Active Art Unit
3765
Art Unit(s)
3732, 3765
Total Applications
1335
Issued Applications
857
Pending Applications
70
Abandoned Applications
425

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 16774557 [patent_doc_number] => 10985683 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-04-20 [patent_title] => Electric motor control device and electric motor control method [patent_app_type] => utility [patent_app_number] => 16/613762 [patent_app_country] => US [patent_app_date] => 2018-05-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 8376 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 252 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16613762 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/613762
Electric motor control device and electric motor control method May 17, 2018 Issued
Array ( [id] => 13398935 [patent_doc_number] => 20180251010 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-09-06 [patent_title] => ACTUATOR HAVING A TEST MODE [patent_app_type] => utility [patent_app_number] => 15/973048 [patent_app_country] => US [patent_app_date] => 2018-05-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3936 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => 0 [patent_words_short_claim] => 86 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15973048 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/973048
Actuator having a test mode May 6, 2018 Issued
Array ( [id] => 17410822 [patent_doc_number] => 11251727 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-02-15 [patent_title] => Electric motor control device [patent_app_type] => utility [patent_app_number] => 16/961780 [patent_app_country] => US [patent_app_date] => 2018-04-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 8 [patent_no_of_words] => 7297 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 247 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16961780 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/961780
Electric motor control device Apr 26, 2018 Issued
Array ( [id] => 15689331 [patent_doc_number] => 20200099329 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-03-26 [patent_title] => MOTOR DRIVE DEVICE [patent_app_type] => utility [patent_app_number] => 16/613100 [patent_app_country] => US [patent_app_date] => 2018-04-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6523 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 282 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16613100 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/613100
Motor drive device Apr 16, 2018 Issued
Array ( [id] => 16911860 [patent_doc_number] => 11043913 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-06-22 [patent_title] => Control apparatus for electric power tool including battery and dc brushless motor [patent_app_type] => utility [patent_app_number] => 16/620325 [patent_app_country] => US [patent_app_date] => 2018-04-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 1955 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 229 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16620325 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/620325
Control apparatus for electric power tool including battery and dc brushless motor Apr 16, 2018 Issued
Array ( [id] => 16480251 [patent_doc_number] => 10855212 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-12-01 [patent_title] => Method for detecting magnetic field location in electric motor [patent_app_type] => utility [patent_app_number] => 16/496290 [patent_app_country] => US [patent_app_date] => 2018-03-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 12 [patent_no_of_words] => 8048 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 449 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16496290 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/496290
Method for detecting magnetic field location in electric motor Mar 27, 2018 Issued
Array ( [id] => 14399099 [patent_doc_number] => 10312844 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-06-04 [patent_title] => Method for controlling operating speed and torque of electric motor [patent_app_type] => utility [patent_app_number] => 15/918832 [patent_app_country] => US [patent_app_date] => 2018-03-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 9 [patent_no_of_words] => 6967 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 191 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15918832 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/918832
Method for controlling operating speed and torque of electric motor Mar 11, 2018 Issued
Array ( [id] => 16982332 [patent_doc_number] => 20210226569 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-07-22 [patent_title] => ELECTRIC MOTOR DRIVE DEVICE AND AIR CONDITIONER [patent_app_type] => utility [patent_app_number] => 16/955266 [patent_app_country] => US [patent_app_date] => 2018-03-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4612 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 32 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16955266 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/955266
Electric motor drive device and air conditioner Mar 7, 2018 Issued
Array ( [id] => 16365148 [patent_doc_number] => 20200321899 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-10-08 [patent_title] => ROTARY ELECTRIC MACHINE APPARATUS [patent_app_type] => utility [patent_app_number] => 16/753054 [patent_app_country] => US [patent_app_date] => 2018-03-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10849 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 218 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16753054 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/753054
Rotary electric machine apparatus Mar 1, 2018 Issued
Array ( [id] => 15792973 [patent_doc_number] => 10630222 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-04-21 [patent_title] => System having electrical machine and controller [patent_app_type] => utility [patent_app_number] => 15/908129 [patent_app_country] => US [patent_app_date] => 2018-02-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 5527 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 170 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15908129 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/908129
System having electrical machine and controller Feb 27, 2018 Issued
Array ( [id] => 14152617 [patent_doc_number] => 10256701 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-04-09 [patent_title] => Electric power tool and method for driving brushless motor thereof [patent_app_type] => utility [patent_app_number] => 15/905028 [patent_app_country] => US [patent_app_date] => 2018-02-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 16 [patent_no_of_words] => 5903 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 171 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15905028 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/905028
Electric power tool and method for driving brushless motor thereof Feb 25, 2018 Issued
Array ( [id] => 13523171 [patent_doc_number] => 20180313128 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-11-01 [patent_title] => BRAKING DEVICE [patent_app_type] => utility [patent_app_number] => 15/890095 [patent_app_country] => US [patent_app_date] => 2018-02-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5631 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 144 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15890095 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/890095
Braking device Feb 5, 2018 Issued
Array ( [id] => 13523173 [patent_doc_number] => 20180313129 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-11-01 [patent_title] => BRAKING MECHANISM [patent_app_type] => utility [patent_app_number] => 15/890128 [patent_app_country] => US [patent_app_date] => 2018-02-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5480 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 159 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15890128 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/890128
Braking mechanism Feb 5, 2018 Issued
Array ( [id] => 14673221 [patent_doc_number] => 10374537 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-08-06 [patent_title] => Rotor position detection system [patent_app_type] => utility [patent_app_number] => 15/883621 [patent_app_country] => US [patent_app_date] => 2018-01-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 16 [patent_no_of_words] => 5441 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 168 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15883621 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/883621
Rotor position detection system Jan 29, 2018 Issued
Array ( [id] => 13322011 [patent_doc_number] => 20180212543 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-07-26 [patent_title] => CONTROL DEVICE OF INDUCTION MOTOR [patent_app_type] => utility [patent_app_number] => 15/876639 [patent_app_country] => US [patent_app_date] => 2018-01-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6391 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 261 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15876639 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/876639
Control device of induction motor Jan 21, 2018 Issued
Array ( [id] => 13351817 [patent_doc_number] => 20180227448 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-08-09 [patent_title] => SHEET CONVEYANCE APPARATUS AND IMAGE FORMING APPARATUS [patent_app_type] => utility [patent_app_number] => 15/873674 [patent_app_country] => US [patent_app_date] => 2018-01-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11499 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 355 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15873674 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/873674
Sheet conveyance apparatus and image forming apparatus Jan 16, 2018 Issued
Array ( [id] => 14860303 [patent_doc_number] => 10418894 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-09-17 [patent_title] => Inverter system and method of controlling the same [patent_app_type] => utility [patent_app_number] => 15/869839 [patent_app_country] => US [patent_app_date] => 2018-01-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 2875 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 245 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15869839 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/869839
Inverter system and method of controlling the same Jan 11, 2018 Issued
Array ( [id] => 13298693 [patent_doc_number] => 20180200883 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-07-19 [patent_title] => MOTOR OPERATION CONTROL SYSTEM, MULTI-AXIS MECHANICAL APPARATUS, AND MOTOR OPERATION CONTROL METHOD [patent_app_type] => utility [patent_app_number] => 15/869775 [patent_app_country] => US [patent_app_date] => 2018-01-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8110 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 170 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15869775 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/869775
Motor operation control system, multi-axis mechanical apparatus, and motor operation control method Jan 11, 2018 Issued
Array ( [id] => 13964235 [patent_doc_number] => 20190058462 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-02-21 [patent_title] => ERROR ELIMINATION AMPLIFIER AND MOTER CONTROL CIRCUIT USING THE SAME [patent_app_type] => utility [patent_app_number] => 15/867885 [patent_app_country] => US [patent_app_date] => 2018-01-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3819 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 247 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15867885 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/867885
Error elimination amplifier and motor control circuit using the same Jan 10, 2018 Issued
Array ( [id] => 13416081 [patent_doc_number] => 20180259583 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-09-13 [patent_title] => METHOD AND APPARATUS FOR DETECTING INTER-PHASE SHORT-CIRCUIT OF THREE-PHASE MOTOR AND AIR CONDITIONER INCLUDING THE SAME [patent_app_type] => utility [patent_app_number] => 15/868133 [patent_app_country] => US [patent_app_date] => 2018-01-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5491 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 93 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15868133 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/868133
Method and apparatus for detecting inter-phase short-circuit of three-phase motor and air conditioner including the same Jan 10, 2018 Issued
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