Search

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 numberTitle of the applicationFiling DateStatus
Array ( [id] => 19026546 [patent_doc_number] => 11925889 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-03-12 [patent_title] => Spliceable and foldable filter element device [patent_app_type] => utility [patent_app_number] => 18/244558 [patent_app_country] => US [patent_app_date] => 2023-09-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 9 [patent_no_of_words] => 3614 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 269 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18244558 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/244558
Spliceable and foldable filter element device Sep 10, 2023 Issued
Array ( [id] => 18861690 [patent_doc_number] => 20230416125 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-12-28 [patent_title] => HIGH-EFFICIENCY AIRLIFT PUMP [patent_app_type] => utility [patent_app_number] => 18/453281 [patent_app_country] => US [patent_app_date] => 2023-08-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5092 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [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] => 18453281 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/453281
High-efficiency airlift pump Aug 20, 2023 Issued
Array ( [id] => 18861690 [patent_doc_number] => 20230416125 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-12-28 [patent_title] => HIGH-EFFICIENCY AIRLIFT PUMP [patent_app_type] => utility [patent_app_number] => 18/453281 [patent_app_country] => US [patent_app_date] => 2023-08-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5092 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [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] => 18453281 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/453281
High-efficiency airlift pump Aug 20, 2023 Issued
Array ( [id] => 18987616 [patent_doc_number] => 20240059585 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-22 [patent_title] => ENERGY INTEGRATED WATER PURIFICATION AND RECOVERY SYSTEM AND METHOD FOR USING SAME [patent_app_type] => utility [patent_app_number] => 18/234715 [patent_app_country] => US [patent_app_date] => 2023-08-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4670 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 162 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18234715 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/234715
ENERGY INTEGRATED WATER PURIFICATION AND RECOVERY SYSTEM AND METHOD FOR USING SAME Aug 15, 2023 Pending
Array ( [id] => 18987616 [patent_doc_number] => 20240059585 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-22 [patent_title] => ENERGY INTEGRATED WATER PURIFICATION AND RECOVERY SYSTEM AND METHOD FOR USING SAME [patent_app_type] => utility [patent_app_number] => 18/234715 [patent_app_country] => US [patent_app_date] => 2023-08-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4670 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 162 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18234715 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/234715
ENERGY INTEGRATED WATER PURIFICATION AND RECOVERY SYSTEM AND METHOD FOR USING SAME Aug 15, 2023 Pending
Array ( [id] => 19280492 [patent_doc_number] => 20240216966 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-04 [patent_title] => GROUNDWATER CIRCULATION WELL GROUP AND CIRCULATING MODE CONTROL METHOD THEREFOR [patent_app_type] => utility [patent_app_number] => 18/233016 [patent_app_country] => US [patent_app_date] => 2023-08-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12901 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 18233016 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/233016
GROUNDWATER CIRCULATION WELL GROUP AND CIRCULATING MODE CONTROL METHOD THEREFOR Aug 10, 2023 Pending
Array ( [id] => 19280492 [patent_doc_number] => 20240216966 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-04 [patent_title] => GROUNDWATER CIRCULATION WELL GROUP AND CIRCULATING MODE CONTROL METHOD THEREFOR [patent_app_type] => utility [patent_app_number] => 18/233016 [patent_app_country] => US [patent_app_date] => 2023-08-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12901 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 18233016 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/233016
GROUNDWATER CIRCULATION WELL GROUP AND CIRCULATING MODE CONTROL METHOD THEREFOR Aug 10, 2023 Pending
Array ( [id] => 18971764 [patent_doc_number] => 20240051856 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-15 [patent_title] => BIOFILM GROWTH-CONTROLLING DEVICE AND METHOD [patent_app_type] => utility [patent_app_number] => 18/446773 [patent_app_country] => US [patent_app_date] => 2023-08-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8204 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 53 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18446773 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/446773
BIOFILM GROWTH-CONTROLLING DEVICE AND METHOD Aug 8, 2023 Pending
Array ( [id] => 18806487 [patent_doc_number] => 20230380817 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-30 [patent_title] => LIQUID-COLLECTING MECHANISM WITH ARRAYED MESH COLLECTION AREA AND SMART TOILET CONTAINING SAME [patent_app_type] => utility [patent_app_number] => 18/229922 [patent_app_country] => US [patent_app_date] => 2023-08-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3110 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 77 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18229922 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/229922
LIQUID-COLLECTING MECHANISM WITH ARRAYED MESH COLLECTION AREA AND SMART TOILET CONTAINING SAME Aug 2, 2023 Pending
Array ( [id] => 19282150 [patent_doc_number] => 20240218624 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-04 [patent_title] => PORTABLE OIL SKIMMER [patent_app_type] => utility [patent_app_number] => 18/213922 [patent_app_country] => US [patent_app_date] => 2023-06-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5543 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 132 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18213922 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/213922
PORTABLE OIL SKIMMER Jun 25, 2023 Pending
Array ( [id] => 19614748 [patent_doc_number] => 20240400428 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-05 [patent_title] => VENTILATED MAT SYSTEM AND PROCESSES [patent_app_type] => utility [patent_app_number] => 18/205955 [patent_app_country] => US [patent_app_date] => 2023-06-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14555 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18205955 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/205955
VENTILATED MAT SYSTEM AND PROCESSES Jun 4, 2023 Pending
Array ( [id] => 18980034 [patent_doc_number] => 11905194 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-02-20 [patent_title] => Deep denitrification treatment system for wastewater by anaerobic-anoxic-oxic based on high-oxygen three-phase contact [patent_app_type] => utility [patent_app_number] => 18/326397 [patent_app_country] => US [patent_app_date] => 2023-05-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 5448 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 431 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18326397 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/326397
Deep denitrification treatment system for wastewater by anaerobic-anoxic-oxic based on high-oxygen three-phase contact May 30, 2023 Issued
Array ( [id] => 18971767 [patent_doc_number] => 20240051859 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-15 [patent_title] => APPARATUS AND METHOD FOR TREATING WASTE WATER [patent_app_type] => utility [patent_app_number] => 18/200615 [patent_app_country] => US [patent_app_date] => 2023-05-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6761 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 183 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18200615 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/200615
APPARATUS AND METHOD FOR TREATING WASTE WATER May 22, 2023 Pending
Array ( [id] => 18808444 [patent_doc_number] => 20230382777 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-30 [patent_title] => INTEGRATED THERMAL HYDROLYSIS AND VACUUM DIGESTION FOR TREATING FLUID USING A BIOCHEMICAL PROCESS [patent_app_type] => utility [patent_app_number] => 18/199548 [patent_app_country] => US [patent_app_date] => 2023-05-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10357 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -21 [patent_words_short_claim] => 183 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18199548 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/199548
INTEGRATED THERMAL HYDROLYSIS AND VACUUM DIGESTION FOR TREATING FLUID USING A BIOCHEMICAL PROCESS May 18, 2023 Pending
Array ( [id] => 19586652 [patent_doc_number] => 20240384209 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-11-21 [patent_title] => SYSTEMS AND METHODS FOR REDUCING TOTAL DISSOLVED SOLIDS (TDS) IN WASTEWATER BY AN ALGAL BIOFILM TREATMENT [patent_app_type] => utility [patent_app_number] => 18/199061 [patent_app_country] => US [patent_app_date] => 2023-05-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15067 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 138 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18199061 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/199061
SYSTEMS AND METHODS FOR REDUCING TOTAL DISSOLVED SOLIDS (TDS) IN WASTEWATER BY AN ALGAL BIOFILM TREATMENT May 17, 2023 Abandoned
Array ( [id] => 18739382 [patent_doc_number] => 20230348303 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-02 [patent_title] => SYSTEMS AND METHODS FOR REDUCING TOTAL DISSOLVED SOLIDS (TDS) IN WASTEWATER BY AN ALGAL BIOFILM TREATMENT [patent_app_type] => utility [patent_app_number] => 18/199051 [patent_app_country] => US [patent_app_date] => 2023-05-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15077 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18199051 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/199051
Systems and methods for reducing total dissolved solids (TDS) in wastewater by an algal biofilm treatment May 17, 2023 Issued
Array ( [id] => 18612919 [patent_doc_number] => 20230279655 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-07 [patent_title] => NON-CONTACT SENSOR FOR DETERMINING A F.O.G. LEVEL IN A SEPARATOR USING ROTOMOLDED PARTS [patent_app_type] => utility [patent_app_number] => 18/196753 [patent_app_country] => US [patent_app_date] => 2023-05-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4831 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 165 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18196753 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/196753
NON-CONTACT SENSOR FOR DETERMINING A F.O.G. LEVEL IN A SEPARATOR USING ROTOMOLDED PARTS May 11, 2023 Pending
Array ( [id] => 18612919 [patent_doc_number] => 20230279655 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-07 [patent_title] => NON-CONTACT SENSOR FOR DETERMINING A F.O.G. LEVEL IN A SEPARATOR USING ROTOMOLDED PARTS [patent_app_type] => utility [patent_app_number] => 18/196753 [patent_app_country] => US [patent_app_date] => 2023-05-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4831 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 165 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18196753 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/196753
NON-CONTACT SENSOR FOR DETERMINING A F.O.G. LEVEL IN A SEPARATOR USING ROTOMOLDED PARTS May 11, 2023 Pending
Array ( [id] => 18808439 [patent_doc_number] => 20230382772 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-30 [patent_title] => APPARATUS AND METHODS FOR METHYL MERCURY DETECTION AND CAPTURE [patent_app_type] => utility [patent_app_number] => 18/311630 [patent_app_country] => US [patent_app_date] => 2023-05-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5149 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [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] => 18311630 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/311630
APPARATUS AND METHODS FOR METHYL MERCURY DETECTION AND CAPTURE May 2, 2023 Pending
Array ( [id] => 19542984 [patent_doc_number] => 20240360020 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-31 [patent_title] => HOLISTIC MANURE MANAGEMENT WITH IMPROVED ENVIRONMENTAL SUSTAINABILITY AND EXTRACTION OF MANURE VALUE [patent_app_type] => utility [patent_app_number] => 18/139511 [patent_app_country] => US [patent_app_date] => 2023-04-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5100 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 325 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18139511 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/139511
HOLISTIC MANURE MANAGEMENT WITH IMPROVED ENVIRONMENTAL SUSTAINABILITY AND EXTRACTION OF MANURE VALUE Apr 25, 2023 Pending
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