Search

Joseph Chang

Examiner (ID: 1965, Phone: (571)272-1759 , Office: P/2842 )

Most Active Art Unit
2817
Art Unit(s)
2842, 2836, 2817, 2849, 2843
Total Applications
2215
Issued Applications
1946
Pending Applications
125
Abandoned Applications
172

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 17909083 [patent_doc_number] => 11462952 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-10-04 [patent_title] => Wireless power transmitters for transmitting power at extended separation distances utilizing T-Core shielding [patent_app_type] => utility [patent_app_number] => 17/132864 [patent_app_country] => US [patent_app_date] => 2020-12-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 15 [patent_no_of_words] => 12182 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 166 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17132864 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/132864
Wireless power transmitters for transmitting power at extended separation distances utilizing T-Core shielding Dec 22, 2020 Issued
Array ( [id] => 17848469 [patent_doc_number] => 11437856 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-09-06 [patent_title] => Wireless power transmitters and associated base stations for through-structure charging [patent_app_type] => utility [patent_app_number] => 17/132898 [patent_app_country] => US [patent_app_date] => 2020-12-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 17 [patent_no_of_words] => 11235 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 160 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17132898 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/132898
Wireless power transmitters and associated base stations for through-structure charging Dec 22, 2020 Issued
Array ( [id] => 17848469 [patent_doc_number] => 11437856 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-09-06 [patent_title] => Wireless power transmitters and associated base stations for through-structure charging [patent_app_type] => utility [patent_app_number] => 17/132898 [patent_app_country] => US [patent_app_date] => 2020-12-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 17 [patent_no_of_words] => 11235 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 160 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17132898 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/132898
Wireless power transmitters and associated base stations for through-structure charging Dec 22, 2020 Issued
Array ( [id] => 17909083 [patent_doc_number] => 11462952 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-10-04 [patent_title] => Wireless power transmitters for transmitting power at extended separation distances utilizing T-Core shielding [patent_app_type] => utility [patent_app_number] => 17/132864 [patent_app_country] => US [patent_app_date] => 2020-12-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 15 [patent_no_of_words] => 12182 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 166 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17132864 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/132864
Wireless power transmitters for transmitting power at extended separation distances utilizing T-Core shielding Dec 22, 2020 Issued
Array ( [id] => 16952428 [patent_doc_number] => 20210211120 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-07-08 [patent_title] => INTEGRATED CIRCUIT COMPRISING AT LEAST ONE RING OSCILLATOR AND METHOD FOR CONTROLLING AN OPERATION OF THE OSCILLATOR [patent_app_type] => utility [patent_app_number] => 17/128890 [patent_app_country] => US [patent_app_date] => 2020-12-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7323 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -28 [patent_words_short_claim] => 43 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17128890 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/128890
Integrated circuit comprising at least one ring oscillator and method for controlling an operation of the oscillator Dec 20, 2020 Issued
Array ( [id] => 17410893 [patent_doc_number] => 11251798 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-02-15 [patent_title] => Reference clock signal injected phase locked loop circuit and offset calibration method thereof [patent_app_type] => utility [patent_app_number] => 17/126061 [patent_app_country] => US [patent_app_date] => 2020-12-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 10 [patent_no_of_words] => 5885 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 320 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17126061 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/126061
Reference clock signal injected phase locked loop circuit and offset calibration method thereof Dec 17, 2020 Issued
Array ( [id] => 17410758 [patent_doc_number] => 11251663 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-02-15 [patent_title] => Power transfer system with patient transport apparatus and power transfer device to transfer power to the patient transport apparatus [patent_app_type] => utility [patent_app_number] => 17/125337 [patent_app_country] => US [patent_app_date] => 2020-12-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 34 [patent_figures_cnt] => 34 [patent_no_of_words] => 10280 [patent_no_of_claims] => 17 [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] => 17125337 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/125337
Power transfer system with patient transport apparatus and power transfer device to transfer power to the patient transport apparatus Dec 16, 2020 Issued
Array ( [id] => 17653311 [patent_doc_number] => 11356058 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2022-06-07 [patent_title] => Oscillator with frequency variation compensation [patent_app_type] => utility [patent_app_number] => 17/125168 [patent_app_country] => US [patent_app_date] => 2020-12-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 4854 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 172 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17125168 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/125168
Oscillator with frequency variation compensation Dec 16, 2020 Issued
Array ( [id] => 20244468 [patent_doc_number] => 12424802 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-09-23 [patent_title] => Technique for preventing arcing when disconnecting a DC connection by using an extension of a line compound [patent_app_type] => utility [patent_app_number] => 17/786542 [patent_app_country] => US [patent_app_date] => 2020-12-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 12 [patent_no_of_words] => 6879 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 385 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17786542 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/786542
Technique for preventing arcing when disconnecting a DC connection by using an extension of a line compound Dec 15, 2020 Issued
Array ( [id] => 16828510 [patent_doc_number] => 20210143803 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-05-13 [patent_title] => APPARATUS AND METHOD FOR IMPROVING LOCK TIME [patent_app_type] => utility [patent_app_number] => 17/119937 [patent_app_country] => US [patent_app_date] => 2020-12-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7326 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 2 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17119937 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/119937
Apparatus and method for improving lock time Dec 10, 2020 Issued
Array ( [id] => 17544595 [patent_doc_number] => 11309735 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2022-04-19 [patent_title] => Non-vibrational electromagnetic energy harvester [patent_app_type] => utility [patent_app_number] => 17/119438 [patent_app_country] => US [patent_app_date] => 2020-12-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2456 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 156 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17119438 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/119438
Non-vibrational electromagnetic energy harvester Dec 10, 2020 Issued
Array ( [id] => 17470540 [patent_doc_number] => 11277025 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-03-15 [patent_title] => Redundant DC input power supplies having back-feed protection [patent_app_type] => utility [patent_app_number] => 17/118724 [patent_app_country] => US [patent_app_date] => 2020-12-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 11 [patent_no_of_words] => 6476 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 129 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17118724 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/118724
Redundant DC input power supplies having back-feed protection Dec 10, 2020 Issued
Array ( [id] => 18138894 [patent_doc_number] => 20230012729 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-01-19 [patent_title] => MAGNETIC FIELD CANCELLATION CIRCUITRY [patent_app_type] => utility [patent_app_number] => 17/757025 [patent_app_country] => US [patent_app_date] => 2020-12-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9168 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 84 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17757025 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/757025
Magnetic field cancellation circuitry Dec 6, 2020 Issued
Array ( [id] => 18800769 [patent_doc_number] => 11833916 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-12-05 [patent_title] => Foreign substance detection device, electricity transmission device, electricity reception device, and electric power transmission system [patent_app_type] => utility [patent_app_number] => 17/628700 [patent_app_country] => US [patent_app_date] => 2020-12-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 19 [patent_no_of_words] => 7630 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 125 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17628700 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/628700
Foreign substance detection device, electricity transmission device, electricity reception device, and electric power transmission system Dec 3, 2020 Issued
Array ( [id] => 17775908 [patent_doc_number] => 20220242257 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-08-04 [patent_title] => FOREIGN MATTER DETECTION DEVICE, POWER TRANSMISSION DEVICE, POWER RECEPTION DEVICE, AND POWER TRANSMISSION SYSTEM [patent_app_type] => utility [patent_app_number] => 17/629643 [patent_app_country] => US [patent_app_date] => 2020-12-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8602 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 147 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17629643 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/629643
FOREIGN MATTER DETECTION DEVICE, POWER TRANSMISSION DEVICE, POWER RECEPTION DEVICE, AND POWER TRANSMISSION SYSTEM Dec 3, 2020 Abandoned
Array ( [id] => 19047083 [patent_doc_number] => 11936208 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-03-19 [patent_title] => Wireless power transfer and communication [patent_app_type] => utility [patent_app_number] => 17/779185 [patent_app_country] => US [patent_app_date] => 2020-12-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 20 [patent_no_of_words] => 18583 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 240 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17779185 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/779185
Wireless power transfer and communication Dec 2, 2020 Issued
Array ( [id] => 17544601 [patent_doc_number] => 11309741 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-04-19 [patent_title] => Resonance oscillator circuit and contactless power supply system [patent_app_type] => utility [patent_app_number] => 17/106865 [patent_app_country] => US [patent_app_date] => 2020-11-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 23 [patent_figures_cnt] => 26 [patent_no_of_words] => 9135 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 244 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17106865 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/106865
Resonance oscillator circuit and contactless power supply system Nov 29, 2020 Issued
Array ( [id] => 18098228 [patent_doc_number] => 20220416569 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-12-29 [patent_title] => BRANCH CIRCUIT EMERGENCY LIGHTING TRANSFER SWITCH UTILIZING RELAY CONTROLS AND SAFETY RELAY FOR LOAD POWER CONTROL [patent_app_type] => utility [patent_app_number] => 17/778440 [patent_app_country] => US [patent_app_date] => 2020-11-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2581 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 127 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17778440 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/778440
Branch circuit emergency lighting transfer switch utilizing relay controls and safety relay for load power control Nov 19, 2020 Issued
Array ( [id] => 19508235 [patent_doc_number] => 12119667 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-10-15 [patent_title] => Electrical resonators [patent_app_type] => utility [patent_app_number] => 17/775848 [patent_app_country] => US [patent_app_date] => 2020-11-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 32 [patent_no_of_words] => 8733 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 186 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17775848 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/775848
Electrical resonators Nov 9, 2020 Issued
Array ( [id] => 16988417 [patent_doc_number] => 11075603 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2021-07-27 [patent_title] => Integrated LC oscillator and method thereof [patent_app_type] => utility [patent_app_number] => 17/088646 [patent_app_country] => US [patent_app_date] => 2020-11-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3827 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 232 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17088646 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/088646
Integrated LC oscillator and method thereof Nov 3, 2020 Issued
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