Search

Khiem D. Nguyen

Examiner (ID: 5053, Phone: (571)270-3941 , Office: P/2842 )

Most Active Art Unit
2823
Art Unit(s)
2817, 2842, 4146, 2823, 2892, 2843
Total Applications
2849
Issued Applications
2303
Pending Applications
192
Abandoned Applications
402

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20370823 [patent_doc_number] => 12478235 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-25 [patent_title] => Vacuum cleaner having adaptive dirt identification and method for operating the vacuum cleaner [patent_app_type] => utility [patent_app_number] => 18/594267 [patent_app_country] => US [patent_app_date] => 2024-03-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 0 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 167 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18594267 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/594267
Vacuum cleaner having adaptive dirt identification and method for operating the vacuum cleaner Mar 3, 2024 Issued
Array ( [id] => 20265151 [patent_doc_number] => 12436136 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-10-07 [patent_title] => Device for the detection of conditions indicative of illicit drug production [patent_app_type] => utility [patent_app_number] => 18/591824 [patent_app_country] => US [patent_app_date] => 2024-02-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 11 [patent_no_of_words] => 1200 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 218 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18591824 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/591824
Device for the detection of conditions indicative of illicit drug production Feb 28, 2024 Issued
Array ( [id] => 20549289 [patent_doc_number] => 12560073 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-02-24 [patent_title] => Systems and methods for determining downhole tool status [patent_app_type] => utility [patent_app_number] => 18/585127 [patent_app_country] => US [patent_app_date] => 2024-02-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 18307 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 325 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18585127 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/585127
Systems and methods for determining downhole tool status Feb 22, 2024 Issued
Array ( [id] => 19729956 [patent_doc_number] => 12207942 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-01-28 [patent_title] => Head-mounted physiological signal monitoring system, devices and methods [patent_app_type] => utility [patent_app_number] => 18/584458 [patent_app_country] => US [patent_app_date] => 2024-02-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 23 [patent_no_of_words] => 30541 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 231 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18584458 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/584458
Head-mounted physiological signal monitoring system, devices and methods Feb 21, 2024 Issued
Array ( [id] => 19394207 [patent_doc_number] => 20240284077 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-22 [patent_title] => SYSTEMS AND METHODS FOR WELLSITE CONTROL [patent_app_type] => utility [patent_app_number] => 18/442278 [patent_app_country] => US [patent_app_date] => 2024-02-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 16461 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 98 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18442278 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/442278
Systems and methods for wellsite control Feb 14, 2024 Issued
Array ( [id] => 20341580 [patent_doc_number] => 12465295 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-11 [patent_title] => Patient support apparatus having vital signs monitoring and alerting [patent_app_type] => utility [patent_app_number] => 18/438969 [patent_app_country] => US [patent_app_date] => 2024-02-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 41 [patent_figures_cnt] => 42 [patent_no_of_words] => 11581 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 176 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18438969 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/438969
Patient support apparatus having vital signs monitoring and alerting Feb 11, 2024 Issued
Array ( [id] => 19203656 [patent_doc_number] => 20240175555 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-30 [patent_title] => METHODS FOR REGULATING FLOW METERS OF INDUSTRIAL AND COMMERCIAL UNITS OF SMART GAS, INTERNET OF THINGS (IOT) SYSTEMS AND MEDIA THEREOF [patent_app_type] => utility [patent_app_number] => 18/435991 [patent_app_country] => US [patent_app_date] => 2024-02-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9421 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 151 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18435991 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/435991
METHODS FOR REGULATING FLOW METERS OF INDUSTRIAL AND COMMERCIAL UNITS OF SMART GAS, INTERNET OF THINGS (IOT) SYSTEMS AND MEDIA THEREOF Feb 6, 2024 Pending
Array ( [id] => 20153269 [patent_doc_number] => 20250253107 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-08-07 [patent_title] => Enhanced tactile feedback mechanism for a keyboard for stenographic input [patent_app_type] => utility [patent_app_number] => 18/434797 [patent_app_country] => US [patent_app_date] => 2024-02-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 0 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 68 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18434797 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/434797
Enhanced tactile feedback mechanism for a keyboard for stenographic input Feb 5, 2024 Abandoned
Array ( [id] => 20237008 [patent_doc_number] => 20250294327 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-09-18 [patent_title] => SYSTEM AND METHOD FOR CONTROLLING DATA COMMUNICATION WITH A VEHICLE BASED ON A CHARACTERISTIC OF THE EXHAUST GAS FROM THE VEHICLE [patent_app_type] => utility [patent_app_number] => 18/430088 [patent_app_country] => US [patent_app_date] => 2024-02-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6194 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 59 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18430088 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/430088
SYSTEM AND METHOD FOR CONTROLLING DATA COMMUNICATION WITH A VEHICLE BASED ON A CHARACTERISTIC OF THE EXHAUST GAS FROM THE VEHICLE Jan 31, 2024 Pending
Array ( [id] => 20453550 [patent_doc_number] => 12516602 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-01-06 [patent_title] => High-reliability data compression and telemetry scheme for real-time logging data transmission [patent_app_type] => utility [patent_app_number] => 18/403212 [patent_app_country] => US [patent_app_date] => 2024-01-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 4098 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 136 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18403212 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/403212
High-reliability data compression and telemetry scheme for real-time logging data transmission Jan 2, 2024 Issued
Array ( [id] => 19102309 [patent_doc_number] => 20240121537 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-11 [patent_title] => Railcar Sensor Communication System [patent_app_type] => utility [patent_app_number] => 18/542875 [patent_app_country] => US [patent_app_date] => 2023-12-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5696 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [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] => 18542875 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/542875
Railcar sensor communication system Dec 17, 2023 Issued
Array ( [id] => 20473720 [patent_doc_number] => 20260015939 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-01-15 [patent_title] => IMPROVED DOWNHOLE UTILIZATION OF NOISY HIGH VOLTAGE [patent_app_type] => utility [patent_app_number] => 19/136933 [patent_app_country] => US [patent_app_date] => 2023-12-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 0 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 92 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19136933 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/136933
IMPROVED DOWNHOLE UTILIZATION OF NOISY HIGH VOLTAGE Dec 13, 2023 Pending
Array ( [id] => 20041692 [patent_doc_number] => 20250179914 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-06-05 [patent_title] => WIRELINE LOGGING IN HORIZONTAL WELLS [patent_app_type] => utility [patent_app_number] => 18/530089 [patent_app_country] => US [patent_app_date] => 2023-12-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 0 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18530089 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/530089
WIRELINE LOGGING IN HORIZONTAL WELLS Dec 4, 2023 Pending
Array ( [id] => 20041691 [patent_doc_number] => 20250179913 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-06-05 [patent_title] => Well Integrity Evaluation Using Pseudo Attributes [patent_app_type] => utility [patent_app_number] => 18/524491 [patent_app_country] => US [patent_app_date] => 2023-11-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5790 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 73 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18524491 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/524491
Well Integrity Evaluation Using Pseudo Attributes Nov 29, 2023 Pending
Array ( [id] => 20036955 [patent_doc_number] => 20250175177 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-29 [patent_title] => IR TIMING CALIBRATION FOR A KEY SWITCH [patent_app_type] => utility [patent_app_number] => 18/523261 [patent_app_country] => US [patent_app_date] => 2023-11-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8000 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 160 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18523261 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/523261
IR timing calibration for a key switch Nov 28, 2023 Issued
Array ( [id] => 19024194 [patent_doc_number] => 20240080365 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-07 [patent_title] => IDENTIFYING DEVICES CONNECTED TO A SMART CIRCUIT BREAKER [patent_app_type] => utility [patent_app_number] => 18/387621 [patent_app_country] => US [patent_app_date] => 2023-11-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 29973 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18387621 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/387621
Identifying devices connected to a smart circuit breaker Nov 6, 2023 Issued
Array ( [id] => 20144544 [patent_doc_number] => 12378876 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-08-05 [patent_title] => Downhole to surface communications platform for drilling applications [patent_app_type] => utility [patent_app_number] => 18/387160 [patent_app_country] => US [patent_app_date] => 2023-11-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 7 [patent_no_of_words] => 0 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 149 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18387160 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/387160
Downhole to surface communications platform for drilling applications Nov 5, 2023 Issued
Array ( [id] => 19528948 [patent_doc_number] => 20240352850 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-24 [patent_title] => WIRELESS PRESSURE TESTING [patent_app_type] => utility [patent_app_number] => 18/501248 [patent_app_country] => US [patent_app_date] => 2023-11-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2973 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 37 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18501248 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/501248
WIRELESS PRESSURE TESTING Nov 2, 2023 Abandoned
Array ( [id] => 20229031 [patent_doc_number] => 12417685 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-09-16 [patent_title] => Monitoring system [patent_app_type] => utility [patent_app_number] => 18/500632 [patent_app_country] => US [patent_app_date] => 2023-11-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 16 [patent_no_of_words] => 4974 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 248 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18500632 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/500632
Monitoring system Nov 1, 2023 Issued
Array ( [id] => 19318986 [patent_doc_number] => 20240240529 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-18 [patent_title] => Two-Conductor System for Earth Boring Rod Sectons [patent_app_type] => utility [patent_app_number] => 18/492335 [patent_app_country] => US [patent_app_date] => 2023-10-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6212 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 104 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18492335 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/492335
Two-conductor system for earth boring rod sections Oct 22, 2023 Issued
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