Search

Cheukfan Lee

Examiner (ID: 10597, Phone: (571)272-7407 , Office: P/2673 )

Most Active Art Unit
2625
Art Unit(s)
2622, 2625, 2676, 2616, 2722, 2682, 2674, 2612, 2673, 2627
Total Applications
2133
Issued Applications
1807
Pending Applications
64
Abandoned Applications
271

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20280986 [patent_doc_number] => 20250306228 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-10-02 [patent_title] => Novel Method For Estimating Water Saturation In Gas Reservoirs Using Acoustic Log P-Wave And S-Wave Velocities [patent_app_type] => utility [patent_app_number] => 19/068613 [patent_app_country] => US [patent_app_date] => 2025-03-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2891 [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] => 19068613 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/068613
Novel Method For Estimating Water Saturation In Gas Reservoirs Using Acoustic Log P-Wave And S-Wave Velocities Mar 2, 2025 Pending
Array ( [id] => 20051425 [patent_doc_number] => 20250189647 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-06-12 [patent_title] => METHOD FOR ULTRASOUND-BASED OBJECT CLASSIFICATION AND DEVICE FOR PERFORMING ULTRASOUND-BASED OBJECT CLASSIFICATION [patent_app_type] => utility [patent_app_number] => 18/967711 [patent_app_country] => US [patent_app_date] => 2024-12-04 [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] => -10 [patent_words_short_claim] => 102 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18967711 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/967711
METHOD FOR ULTRASOUND-BASED OBJECT CLASSIFICATION AND DEVICE FOR PERFORMING ULTRASOUND-BASED OBJECT CLASSIFICATION Dec 3, 2024 Pending
Array ( [id] => 20060945 [patent_doc_number] => 20250199167 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-06-19 [patent_title] => METHOD AND SYSTEM FOR ESTIMATING RANGE WITH ULTRASOUND [patent_app_type] => utility [patent_app_number] => 18/942168 [patent_app_country] => US [patent_app_date] => 2024-11-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2262 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -20 [patent_words_short_claim] => 108 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18942168 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/942168
METHOD AND SYSTEM FOR ESTIMATING RANGE WITH ULTRASOUND Nov 7, 2024 Pending
Array ( [id] => 19992120 [patent_doc_number] => 20250130342 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-04-24 [patent_title] => Marine Seismic Survey Designs for Shallow Subsurface Investigations [patent_app_type] => utility [patent_app_number] => 18/917771 [patent_app_country] => US [patent_app_date] => 2024-10-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4772 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -23 [patent_words_short_claim] => 116 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18917771 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/917771
Marine Seismic Survey Designs for Shallow Subsurface Investigations Oct 15, 2024 Pending
Array ( [id] => 20003345 [patent_doc_number] => 20250141567 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-01 [patent_title] => ULTRASONIC TRANSCEIVER AND CONTROL METHOD THEREOF [patent_app_type] => utility [patent_app_number] => 18/915536 [patent_app_country] => US [patent_app_date] => 2024-10-15 [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] => -18 [patent_words_short_claim] => 113 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18915536 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/915536
ULTRASONIC TRANSCEIVER AND CONTROL METHOD THEREOF Oct 14, 2024 Pending
Array ( [id] => 19725267 [patent_doc_number] => 20250028018 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-23 [patent_title] => MOBILE DEVICE BASED CONTROL DEVICE LOCATOR [patent_app_type] => utility [patent_app_number] => 18/908172 [patent_app_country] => US [patent_app_date] => 2024-10-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13086 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 163 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18908172 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/908172
MOBILE DEVICE BASED CONTROL DEVICE LOCATOR Oct 6, 2024 Pending
Array ( [id] => 19707429 [patent_doc_number] => 20250017571 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-16 [patent_title] => ULTRASOUND SYSTEM AND METHODS THEREOF FOR GENERATION OF A MORPHING FUNCTION AND ELASTIC PROPERTIES OF A MOVING MEDIUM USING FULL WAVEFORM INVERSION [patent_app_type] => utility [patent_app_number] => 18/899115 [patent_app_country] => US [patent_app_date] => 2024-09-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8340 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -30 [patent_words_short_claim] => 119 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18899115 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/899115
ULTRASOUND SYSTEM AND METHODS THEREOF FOR GENERATION OF A MORPHING FUNCTION AND ELASTIC PROPERTIES OF A MOVING MEDIUM USING FULL WAVEFORM INVERSION Sep 26, 2024 Pending
Array ( [id] => 19652546 [patent_doc_number] => 12174327 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-12-24 [patent_title] => Method for surveying with a wireless seismic network [patent_app_type] => utility [patent_app_number] => 18/814777 [patent_app_country] => US [patent_app_date] => 2024-08-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 12 [patent_no_of_words] => 10882 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 142 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18814777 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/814777
Method for surveying with a wireless seismic network Aug 25, 2024 Issued
Array ( [id] => 19739409 [patent_doc_number] => 12216237 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-02-04 [patent_title] => Wireless seismic survey system [patent_app_type] => utility [patent_app_number] => 18/814757 [patent_app_country] => US [patent_app_date] => 2024-08-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 12 [patent_no_of_words] => 10955 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 141 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18814757 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/814757
Wireless seismic survey system Aug 25, 2024 Issued
Array ( [id] => 19668880 [patent_doc_number] => 12181621 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-12-31 [patent_title] => System and program instructions for seismic survey [patent_app_type] => utility [patent_app_number] => 18/814737 [patent_app_country] => US [patent_app_date] => 2024-08-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 12 [patent_no_of_words] => 10865 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 165 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18814737 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/814737
System and program instructions for seismic survey Aug 25, 2024 Issued
Array ( [id] => 19632554 [patent_doc_number] => 20240411003 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-12 [patent_title] => DISTANCE MEASUREMENT METHOD, READABLE MEDIUM, AND ELECTRONIC DEVICE [patent_app_type] => utility [patent_app_number] => 18/813541 [patent_app_country] => US [patent_app_date] => 2024-08-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 23866 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 221 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18813541 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/813541
DISTANCE MEASUREMENT METHOD, READABLE MEDIUM, AND ELECTRONIC DEVICE Aug 22, 2024 Pending
Array ( [id] => 19805551 [patent_doc_number] => 20250071476 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-27 [patent_title] => TRANSDUCER APPARATUS AND EXTERIOR EQUIPMENT [patent_app_type] => utility [patent_app_number] => 18/804767 [patent_app_country] => US [patent_app_date] => 2024-08-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3366 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [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] => 18804767 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/804767
TRANSDUCER APPARATUS AND EXTERIOR EQUIPMENT Aug 13, 2024 Pending
Array ( [id] => 20474390 [patent_doc_number] => 20260016610 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-01-15 [patent_title] => SYSTEMS AND METHODS FOR MANAGING SEISMIC DATA [patent_app_type] => utility [patent_app_number] => 18/772873 [patent_app_country] => US [patent_app_date] => 2024-07-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1166 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 193 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18772873 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/772873
SYSTEMS AND METHODS FOR MANAGING SEISMIC DATA Jul 14, 2024 Pending
Array ( [id] => 19965463 [patent_doc_number] => 12334987 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-06-17 [patent_title] => Frequency pairing for device synchronization [patent_app_type] => utility [patent_app_number] => 18/771899 [patent_app_country] => US [patent_app_date] => 2024-07-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3522 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 82 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18771899 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/771899
Frequency pairing for device synchronization Jul 11, 2024 Issued
Array ( [id] => 19898799 [patent_doc_number] => 12276717 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-04-15 [patent_title] => Microwave motion detection system and lighting applications [patent_app_type] => utility [patent_app_number] => 18/765295 [patent_app_country] => US [patent_app_date] => 2024-07-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 19 [patent_no_of_words] => 16434 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 46 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18765295 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/765295
Microwave motion detection system and lighting applications Jul 6, 2024 Issued
Array ( [id] => 19481144 [patent_doc_number] => 20240329186 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-03 [patent_title] => Methods and Apparatus to Improve Detection of Audio Signatures [patent_app_type] => utility [patent_app_number] => 18/740270 [patent_app_country] => US [patent_app_date] => 2024-06-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 16305 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18740270 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/740270
Methods and apparatus to improve detection of audio signatures Jun 10, 2024 Issued
Array ( [id] => 19466108 [patent_doc_number] => 20240319778 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-26 [patent_title] => DYNAMIC POWER REDUCTION TECHNIQUE FOR ULTRASOUND SYSTEMS [patent_app_type] => utility [patent_app_number] => 18/731840 [patent_app_country] => US [patent_app_date] => 2024-06-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5936 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 173 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18731840 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/731840
Dynamic power reduction technique for ultrasound systems Jun 2, 2024 Issued
Array ( [id] => 20303519 [patent_doc_number] => 12449504 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-10-21 [patent_title] => Position determination system having a deconvolution decoder [patent_app_type] => utility [patent_app_number] => 18/656820 [patent_app_country] => US [patent_app_date] => 2024-05-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 2628 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 138 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18656820 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/656820
Position determination system having a deconvolution decoder May 6, 2024 Issued
18/707968 System and method for measuring cooling plate thickness in a blast furnace May 6, 2024 Pending
Array ( [id] => 20337041 [patent_doc_number] => 20250341161 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-11-06 [patent_title] => Spiral Waveform Analysis For Behind Pipe Cement Evaluation, Well Abandonment Operations And Complex Annular Environments [patent_app_type] => utility [patent_app_number] => 18/656009 [patent_app_country] => US [patent_app_date] => 2024-05-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3407 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 58 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18656009 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/656009
Spiral Waveform Analysis For Behind Pipe Cement Evaluation, Well Abandonment Operations And Complex Annular Environments May 5, 2024 Pending
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