
Sangwoo Ahn
Examiner (ID: 3211, Phone: (571)272-5626 , Office: P/2166 )
| Most Active Art Unit | 2166 |
| Art Unit(s) | 2168, 2166 |
| Total Applications | 369 |
| Issued Applications | 235 |
| Pending Applications | 10 |
| Abandoned Applications | 125 |
Applications
| Application number | Title of the application | Filing Date | Status |
|---|---|---|---|
Array
(
[id] => 19832196
[patent_doc_number] => 20250083982
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2025-03-13
[patent_title] => MICROORGANISM GENERATION SYSTEM FOR SLUDGE-FREE AEROBIC TANK AND MANUFACTURE METHOD THEREFOR
[patent_app_type] => utility
[patent_app_number] => 18/799952
[patent_app_country] => US
[patent_app_date] => 2024-08-09
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 4288
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -10
[patent_words_short_claim] => 257
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18799952
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/799952 | Microorganism generation system for sludge-free aerobic tank and manufacture method therefor | Aug 8, 2024 | Issued |
Array
(
[id] => 20452919
[patent_doc_number] => 12515969
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2026-01-06
[patent_title] => Method for wastewater treatment control through microorganism metabolic pathway optimization
[patent_app_type] => utility
[patent_app_number] => 18/766208
[patent_app_country] => US
[patent_app_date] => 2024-07-08
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 5
[patent_figures_cnt] => 5
[patent_no_of_words] => 8508
[patent_no_of_claims] => 10
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 272
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18766208
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/766208 | Method for wastewater treatment control through microorganism metabolic pathway optimization | Jul 7, 2024 | Issued |
Array
(
[id] => 19448765
[patent_doc_number] => 20240308895
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-09-19
[patent_title] => ENERGY EFFICIENT DECENTRALIZED WASTEWATER REUSE SYSTEM INCORPORATING MULTIPLE STAGES OF AEROBIC BIOREACTORS AND RECIRCULATION FOR ORGANICS AND NITROGEN REDUCTION
[patent_app_type] => utility
[patent_app_number] => 18/671853
[patent_app_country] => US
[patent_app_date] => 2024-05-22
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 4932
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -9
[patent_words_short_claim] => 186
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18671853
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/671853 | Energy efficient decentralized wastewater reuse system incorporating multiple stages of aerobic bioreactors and recirculation for organics and nitrogen reduction | May 21, 2024 | Issued |
Array
(
[id] => 19381538
[patent_doc_number] => 20240271408
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-08-15
[patent_title] => CROSSFLOW SETTING DEVICES AND METHODS OF USE
[patent_app_type] => utility
[patent_app_number] => 18/647159
[patent_app_country] => US
[patent_app_date] => 2024-04-26
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 3531
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -17
[patent_words_short_claim] => 304
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18647159
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/647159 | Crossflow setting devices and methods of use | Apr 25, 2024 | Issued |
Array
(
[id] => 19381538
[patent_doc_number] => 20240271408
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-08-15
[patent_title] => CROSSFLOW SETTING DEVICES AND METHODS OF USE
[patent_app_type] => utility
[patent_app_number] => 18/647159
[patent_app_country] => US
[patent_app_date] => 2024-04-26
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 3531
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -17
[patent_words_short_claim] => 304
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18647159
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/647159 | Crossflow setting devices and methods of use | Apr 25, 2024 | Issued |
Array
(
[id] => 19380744
[patent_doc_number] => 20240270614
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-08-15
[patent_title] => WATER MANAGEMENT SYSTEM
[patent_app_type] => utility
[patent_app_number] => 18/642121
[patent_app_country] => US
[patent_app_date] => 2024-04-22
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 4175
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => 0
[patent_words_short_claim] => 97
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18642121
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/642121 | WATER MANAGEMENT SYSTEM | Apr 21, 2024 | Abandoned |
Array
(
[id] => 19360691
[patent_doc_number] => 20240262725
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-08-08
[patent_title] => SYSTEMS AND METHODS FOR CREATING AND SEGMENTING TREATMENT PROCESSES
[patent_app_type] => utility
[patent_app_number] => 18/638847
[patent_app_country] => US
[patent_app_date] => 2024-04-18
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 8415
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -17
[patent_words_short_claim] => 124
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18638847
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/638847 | SYSTEMS AND METHODS FOR CREATING AND SEGMENTING TREATMENT PROCESSES | Apr 17, 2024 | Pending |
Array
(
[id] => 19360692
[patent_doc_number] => 20240262726
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-08-08
[patent_title] => METHOD AND APPARATUS FOR MULTI-DESELECTION IN WASTEWATER TREATMENT
[patent_app_type] => utility
[patent_app_number] => 18/637779
[patent_app_country] => US
[patent_app_date] => 2024-04-17
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 17745
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -19
[patent_words_short_claim] => 249
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18637779
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/637779 | METHOD AND APPARATUS FOR MULTI-DESELECTION IN WASTEWATER TREATMENT | Apr 16, 2024 | Pending |
Array
(
[id] => 19140951
[patent_doc_number] => 20240139757
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-05-02
[patent_title] => SYSTEM FOR COLLECTING AND HARVESTING ALGAE FOR BIOFUEL CONVERSION
[patent_app_type] => utility
[patent_app_number] => 18/407757
[patent_app_country] => US
[patent_app_date] => 2024-01-09
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 5156
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -14
[patent_words_short_claim] => 146
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18407757
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/407757 | SYSTEM FOR COLLECTING AND HARVESTING ALGAE FOR BIOFUEL CONVERSION | Jan 8, 2024 | Abandoned |
Array
(
[id] => 19112588
[patent_doc_number] => 20240124338
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-04-18
[patent_title] => LIQUID EFFLUENT TREATMENT MODULE
[patent_app_type] => utility
[patent_app_number] => 18/399583
[patent_app_country] => US
[patent_app_date] => 2023-12-28
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 5000
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -13
[patent_words_short_claim] => 242
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18399583
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/399583 | LIQUID EFFLUENT TREATMENT MODULE | Dec 27, 2023 | Abandoned |
Array
(
[id] => 19082991
[patent_doc_number] => 20240109792
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-04-04
[patent_title] => STORMWATER RUNOFF TREATMENT SUBSTRATE AND STORMWATER BIORETENTION SYSTEM CONSTRUCTED BY USING SUBSTRATE
[patent_app_type] => utility
[patent_app_number] => 18/534687
[patent_app_country] => US
[patent_app_date] => 2023-12-10
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 3588
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -3
[patent_words_short_claim] => 54
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18534687
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/534687 | Stormwater runoff treatment substrate comprising pyrite substrate layer and biochar substrate layer | Dec 9, 2023 | Issued |
Array
(
[id] => 19171401
[patent_doc_number] => 20240157375
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-05-16
[patent_title] => CENTRIFUGAL SEPARATOR
[patent_app_type] => utility
[patent_app_number] => 18/503428
[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] => 3094
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -10
[patent_words_short_claim] => 130
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18503428
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/503428 | CENTRIFUGAL SEPARATOR | Nov 6, 2023 | Pending |
Array
(
[id] => 19171401
[patent_doc_number] => 20240157375
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-05-16
[patent_title] => CENTRIFUGAL SEPARATOR
[patent_app_type] => utility
[patent_app_number] => 18/503428
[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] => 3094
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -10
[patent_words_short_claim] => 130
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18503428
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/503428 | CENTRIFUGAL SEPARATOR | Nov 6, 2023 | Pending |
Array
(
[id] => 19140851
[patent_doc_number] => 20240139652
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-05-02
[patent_title] => Solids Removal System and Method
[patent_app_type] => utility
[patent_app_number] => 18/496204
[patent_app_country] => US
[patent_app_date] => 2023-10-27
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 6882
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -16
[patent_words_short_claim] => 21
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18496204
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/496204 | Solids Removal System and Method | Oct 26, 2023 | Pending |
Array
(
[id] => 18987626
[patent_doc_number] => 20240059595
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-02-22
[patent_title] => PROCESS FOR MANAGING WORMS IN MEMBRANE AERATED BIOFILM
[patent_app_type] => utility
[patent_app_number] => 18/495373
[patent_app_country] => US
[patent_app_date] => 2023-10-26
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 2212
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -12
[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] => 18495373
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/495373 | PROCESS FOR MANAGING WORMS IN MEMBRANE AERATED BIOFILM | Oct 25, 2023 | Pending |
Array
(
[id] => 18987625
[patent_doc_number] => 20240059594
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-02-22
[patent_title] => Simultaneous Nitrification/Denitrification (SNDN) in Sequencing Batch Reactor Applications
[patent_app_type] => utility
[patent_app_number] => 18/382085
[patent_app_country] => US
[patent_app_date] => 2023-10-20
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 6027
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -1
[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] => 18382085
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/382085 | Simultaneous nitrification/denitrification (SNDN) in sequencing batch reactor applications | Oct 19, 2023 | Issued |
Array
(
[id] => 19731046
[patent_doc_number] => 12209036
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2025-01-28
[patent_title] => Liquid dispensing device
[patent_app_type] => utility
[patent_app_number] => 18/380738
[patent_app_country] => US
[patent_app_date] => 2023-10-17
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 33
[patent_figures_cnt] => 40
[patent_no_of_words] => 36659
[patent_no_of_claims] => 20
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 290
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18380738
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/380738 | Liquid dispensing device | Oct 16, 2023 | Issued |
Array
(
[id] => 18954970
[patent_doc_number] => 20240043297
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-02-08
[patent_title] => BIO-ELECTROCHEMICAL SENSOR, SYSTEM AND METHOD FOR MONITORING AND CONTROLLING ORGANIC CARBON LEVELS IN A WASTEWATER TREATMENT PROCESS
[patent_app_type] => utility
[patent_app_number] => 18/484771
[patent_app_country] => US
[patent_app_date] => 2023-10-11
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 15659
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -10
[patent_words_short_claim] => 95
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18484771
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/484771 | BIO-ELECTROCHEMICAL SENSOR, SYSTEM AND METHOD FOR MONITORING AND CONTROLLING ORGANIC CARBON LEVELS IN A WASTEWATER TREATMENT PROCESS | Oct 10, 2023 | Abandoned |
Array
(
[id] => 18954970
[patent_doc_number] => 20240043297
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-02-08
[patent_title] => BIO-ELECTROCHEMICAL SENSOR, SYSTEM AND METHOD FOR MONITORING AND CONTROLLING ORGANIC CARBON LEVELS IN A WASTEWATER TREATMENT PROCESS
[patent_app_type] => utility
[patent_app_number] => 18/484771
[patent_app_country] => US
[patent_app_date] => 2023-10-11
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 15659
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -10
[patent_words_short_claim] => 95
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18484771
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/484771 | BIO-ELECTROCHEMICAL SENSOR, SYSTEM AND METHOD FOR MONITORING AND CONTROLLING ORGANIC CARBON LEVELS IN A WASTEWATER TREATMENT PROCESS | Oct 10, 2023 | Abandoned |
Array
(
[id] => 19291451
[patent_doc_number] => 12030797
[patent_country] => US
[patent_kind] => B1
[patent_issue_date] => 2024-07-09
[patent_title] => System and method for wastewater treatment control through microorganism metabolic pathway optimization
[patent_app_type] => utility
[patent_app_number] => 18/476235
[patent_app_country] => US
[patent_app_date] => 2023-09-27
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 5
[patent_figures_cnt] => 5
[patent_no_of_words] => 13312
[patent_no_of_claims] => 20
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 338
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18476235
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/476235 | System and method for wastewater treatment control through microorganism metabolic pathway optimization | Sep 26, 2023 | Issued |