Search

Henry Choe

Examiner (ID: 6198, Phone: (571)272-1760 , Office: P/2842 )

Most Active Art Unit
2817
Art Unit(s)
2843, 2842, 2817
Total Applications
3715
Issued Applications
3420
Pending Applications
192
Abandoned Applications
146

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 19874176 [patent_doc_number] => 12267052 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-04-01 [patent_title] => Power amplifying device [patent_app_type] => utility [patent_app_number] => 17/653543 [patent_app_country] => US [patent_app_date] => 2022-03-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 7181 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 144 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17653543 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/653543
Power amplifying device Mar 3, 2022 Issued
Array ( [id] => 17926457 [patent_doc_number] => 11469726 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-10-11 [patent_title] => Highly efficient dual-drive power amplifier for high reliability applications [patent_app_type] => utility [patent_app_number] => 17/685662 [patent_app_country] => US [patent_app_date] => 2022-03-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 7 [patent_no_of_words] => 7551 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 137 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17685662 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/685662
Highly efficient dual-drive power amplifier for high reliability applications Mar 2, 2022 Issued
Array ( [id] => 17781020 [patent_doc_number] => 20220247370 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-08-04 [patent_title] => APPARATUS AND METHODS FOR ADAPTIVE POWER AMPLIFIER BIASING [patent_app_type] => utility [patent_app_number] => 17/653164 [patent_app_country] => US [patent_app_date] => 2022-03-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12231 [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] => 17653164 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/653164
Apparatus and methods for adaptive power amplifier biasing Mar 1, 2022 Issued
Array ( [id] => 18616512 [patent_doc_number] => 20230283251 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-07 [patent_title] => CAPACITIVE AMPLIFIER WITH LOW KICKBACK FROM SWITCHABLE FEEDBACK CAPACITORS [patent_app_type] => utility [patent_app_number] => 17/684288 [patent_app_country] => US [patent_app_date] => 2022-03-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5962 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 117 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17684288 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/684288
Capacitive amplifier with low kickback from switchable feedback capacitors Feb 28, 2022 Issued
Array ( [id] => 17870800 [patent_doc_number] => 20220293537 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-09-15 [patent_title] => SEMICONDUCTOR DEVICE AND POWER AMPLIFIER [patent_app_type] => utility [patent_app_number] => 17/652187 [patent_app_country] => US [patent_app_date] => 2022-02-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8127 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [patent_words_short_claim] => 394 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17652187 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/652187
Semiconductor device and power amplifier Feb 22, 2022 Issued
Array ( [id] => 18586634 [patent_doc_number] => 20230268899 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-24 [patent_title] => PROGRAMMABLE GAIN AMPLIFIER WITH IMPEDANCE MATCHING AND REVERSE ISOLATION [patent_app_type] => utility [patent_app_number] => 17/674976 [patent_app_country] => US [patent_app_date] => 2022-02-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4049 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 158 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17674976 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/674976
Programmable gain amplifier with impedance matching and reverse isolation Feb 17, 2022 Issued
Array ( [id] => 18944348 [patent_doc_number] => 20240039487 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-01 [patent_title] => RADIO-FREQUENCY POWER AMPLIFIER DEVICE [patent_app_type] => utility [patent_app_number] => 18/264548 [patent_app_country] => US [patent_app_date] => 2022-02-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13183 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 229 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18264548 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/264548
Radio-frequency power amplifier device Feb 16, 2022 Issued
Array ( [id] => 17811642 [patent_doc_number] => 20220263477 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-08-18 [patent_title] => POWER AMPLIFIER CIRCUIT [patent_app_type] => utility [patent_app_number] => 17/650674 [patent_app_country] => US [patent_app_date] => 2022-02-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13413 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 202 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17650674 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/650674
Power amplifier circuit Feb 10, 2022 Issued
Array ( [id] => 17811661 [patent_doc_number] => 20220263496 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-08-18 [patent_title] => MULTISTAGE ACTIVE FILTER FOR AUTOMOTIVE APPLICATIONS [patent_app_type] => utility [patent_app_number] => 17/670280 [patent_app_country] => US [patent_app_date] => 2022-02-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2928 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 45 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17670280 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/670280
Multistage active filter for automotive applications Feb 10, 2022 Issued
Array ( [id] => 20244642 [patent_doc_number] => 12424976 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-09-23 [patent_title] => System and method for adjusting amplifier bias current based on input signal envelope tracking [patent_app_type] => utility [patent_app_number] => 17/668298 [patent_app_country] => US [patent_app_date] => 2022-02-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 10 [patent_no_of_words] => 0 [patent_no_of_claims] => 26 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 205 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17668298 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/668298
System and method for adjusting amplifier bias current based on input signal envelope tracking Feb 8, 2022 Issued
Array ( [id] => 19071970 [patent_doc_number] => 20240106396 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-28 [patent_title] => Push-Pull Amplifying Unit and Doherty Amplifier Comprising the Same [patent_app_type] => utility [patent_app_number] => 18/264300 [patent_app_country] => US [patent_app_date] => 2022-02-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8543 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 824 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18264300 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/264300
Push-Pull Amplifying Unit and Doherty Amplifier Comprising the Same Feb 3, 2022 Pending
Array ( [id] => 20596816 [patent_doc_number] => 12580545 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-03-17 [patent_title] => Differential amplification circuit [patent_app_type] => utility [patent_app_number] => 17/649821 [patent_app_country] => US [patent_app_date] => 2022-02-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 24 [patent_no_of_words] => 3184 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 89 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17649821 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/649821
Differential amplification circuit Feb 2, 2022 Issued
Array ( [id] => 18541495 [patent_doc_number] => 20230246611 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-03 [patent_title] => DRIVING AMPLIFIER STAGE WITH LOW OUTPUT IMPEDANCE [patent_app_type] => utility [patent_app_number] => 17/588867 [patent_app_country] => US [patent_app_date] => 2022-01-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4702 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 99 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17588867 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/588867
Driving amplifier stage with low output impedance Jan 30, 2022 Issued
Array ( [id] => 18541493 [patent_doc_number] => 20230246609 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-03 [patent_title] => POWER AMPLIFIER SYSTEM [patent_app_type] => utility [patent_app_number] => 17/587368 [patent_app_country] => US [patent_app_date] => 2022-01-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5128 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -27 [patent_words_short_claim] => 85 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17587368 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/587368
Power amplifier system Jan 27, 2022 Issued
Array ( [id] => 18533855 [patent_doc_number] => 20230238932 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-07-27 [patent_title] => AUDIO AMPLIFIER WITH DUTY RATIO CONTROL [patent_app_type] => utility [patent_app_number] => 17/585606 [patent_app_country] => US [patent_app_date] => 2022-01-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3690 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 76 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17585606 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/585606
Audio amplifier with duty ratio control Jan 26, 2022 Issued
Array ( [id] => 19918949 [patent_doc_number] => 12294335 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-05-06 [patent_title] => Receiver front end for digital isolators [patent_app_type] => utility [patent_app_number] => 17/582145 [patent_app_country] => US [patent_app_date] => 2022-01-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 28 [patent_no_of_words] => 5372 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 78 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17582145 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/582145
Receiver front end for digital isolators Jan 23, 2022 Issued
Array ( [id] => 17583937 [patent_doc_number] => 20220140792 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-05-05 [patent_title] => AMPLIFIER HAVING ELECTROSTATIC DISCHARGE AND SURGE PROTECTION CIRCUIT [patent_app_type] => utility [patent_app_number] => 17/580549 [patent_app_country] => US [patent_app_date] => 2022-01-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6344 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 72 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17580549 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/580549
Amplifier having electrostatic discharge and surge protection circuit Jan 19, 2022 Issued
Array ( [id] => 19843266 [patent_doc_number] => 12255674 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-03-18 [patent_title] => Constant-phase attenuator techniques in radio frequency front end (RFFE) amplifiers [patent_app_type] => utility [patent_app_number] => 17/580320 [patent_app_country] => US [patent_app_date] => 2022-01-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 16 [patent_no_of_words] => 15508 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 120 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17580320 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/580320
Constant-phase attenuator techniques in radio frequency front end (RFFE) amplifiers Jan 19, 2022 Issued
Array ( [id] => 19539895 [patent_doc_number] => 12132455 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-10-29 [patent_title] => Amplifier with switchable transformer [patent_app_type] => utility [patent_app_number] => 17/647534 [patent_app_country] => US [patent_app_date] => 2022-01-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 22 [patent_no_of_words] => 14540 [patent_no_of_claims] => 28 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 87 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17647534 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/647534
Amplifier with switchable transformer Jan 9, 2022 Issued
Array ( [id] => 17567354 [patent_doc_number] => 20220131503 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-04-28 [patent_title] => EFFICIENCY, SYMMETRICAL DOHERTY POWER AMPLIFIER [patent_app_type] => utility [patent_app_number] => 17/568316 [patent_app_country] => US [patent_app_date] => 2022-01-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8783 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 88 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17568316 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/568316
Symmetrical Doherty power amplifier having improved efficiency Jan 3, 2022 Issued
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