Search

Hubert G. Cheung

Examiner (ID: 4021, Phone: (571)270-1396 , Office: P/2157 )

Most Active Art Unit
2157
Art Unit(s)
2152, 2169, 2159, 2157, 2168
Total Applications
435
Issued Applications
243
Pending Applications
62
Abandoned Applications
150

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20033117 [patent_doc_number] => 20250171339 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-29 [patent_title] => Constructed Wetland Structure and Methods for Preparing and Using Carbon Source [patent_app_type] => utility [patent_app_number] => 18/941364 [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] => 9104 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [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] => 18941364 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/941364
Constructed wetland structure and methods for preparing and using carbon source Nov 7, 2024 Issued
Array ( [id] => 20093266 [patent_doc_number] => 20250223202 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-07-10 [patent_title] => Integrated Divalent Ion Precipitation And Bipolar Electrodialysis Reactor [patent_app_type] => utility [patent_app_number] => 18/910483 [patent_app_country] => US [patent_app_date] => 2024-10-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11694 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [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] => 18910483 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/910483
Integrated Divalent Ion Precipitation And Bipolar Electrodialysis Reactor Oct 8, 2024 Pending
Array ( [id] => 20093266 [patent_doc_number] => 20250223202 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-07-10 [patent_title] => Integrated Divalent Ion Precipitation And Bipolar Electrodialysis Reactor [patent_app_type] => utility [patent_app_number] => 18/910483 [patent_app_country] => US [patent_app_date] => 2024-10-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11694 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [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] => 18910483 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/910483
Integrated Divalent Ion Precipitation And Bipolar Electrodialysis Reactor Oct 8, 2024 Pending
Array ( [id] => 18901733 [patent_doc_number] => 20240017218 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-18 [patent_title] => CHITOSAN AND RE-ACETYLATED CHITOSAN BASED MEMBRANE AND ASSOCIATED METHOD OF USE [patent_app_type] => utility [patent_app_number] => 18/473467 [patent_app_country] => US [patent_app_date] => 2023-09-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10964 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 24 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18473467 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/473467
CHITOSAN AND RE-ACETYLATED CHITOSAN BASED MEMBRANE AND ASSOCIATED METHOD OF USE Sep 24, 2023 Pending
Array ( [id] => 18450016 [patent_doc_number] => 20230191293 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-06-22 [patent_title] => MULTILAYER FIBER COMPOSITE FILTER MEDIA [patent_app_type] => utility [patent_app_number] => 18/086437 [patent_app_country] => US [patent_app_date] => 2022-12-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10913 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -20 [patent_words_short_claim] => 82 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18086437 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/086437
MULTILAYER FIBER COMPOSITE FILTER MEDIA Dec 20, 2022 Pending
Array ( [id] => 18955788 [patent_doc_number] => 20240044115 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-08 [patent_title] => RAINWATER COLLECTOR [patent_app_type] => utility [patent_app_number] => 17/941153 [patent_app_country] => US [patent_app_date] => 2022-09-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3075 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 64 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17941153 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/941153
RAINWATER COLLECTOR Sep 8, 2022 Abandoned
Array ( [id] => 18149767 [patent_doc_number] => 20230023624 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-01-26 [patent_title] => FILTER CARTRIDGE WITH VALVE MEMBER AND METHODS [patent_app_type] => utility [patent_app_number] => 17/862771 [patent_app_country] => US [patent_app_date] => 2022-07-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4651 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -26 [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] => 17862771 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/862771
FILTER CARTRIDGE WITH VALVE MEMBER AND METHODS Jul 11, 2022 Pending
Array ( [id] => 18149767 [patent_doc_number] => 20230023624 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-01-26 [patent_title] => FILTER CARTRIDGE WITH VALVE MEMBER AND METHODS [patent_app_type] => utility [patent_app_number] => 17/862771 [patent_app_country] => US [patent_app_date] => 2022-07-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4651 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -26 [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] => 17862771 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/862771
FILTER CARTRIDGE WITH VALVE MEMBER AND METHODS Jul 11, 2022 Pending
Array ( [id] => 20301453 [patent_doc_number] => 12447424 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-10-21 [patent_title] => Automatic self-cleaning backwash strainer [patent_app_type] => utility [patent_app_number] => 17/811730 [patent_app_country] => US [patent_app_date] => 2022-07-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 13 [patent_no_of_words] => 0 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 238 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17811730 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/811730
Automatic self-cleaning backwash strainer Jul 10, 2022 Issued
Array ( [id] => 18109368 [patent_doc_number] => 20230002248 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-01-05 [patent_title] => MOBILE WATER PURIFICATION SYSTEM [patent_app_type] => utility [patent_app_number] => 17/856638 [patent_app_country] => US [patent_app_date] => 2022-07-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5989 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 51 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17856638 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/856638
MOBILE WATER PURIFICATION SYSTEM Jun 30, 2022 Pending
Array ( [id] => 18109380 [patent_doc_number] => 20230002260 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-01-05 [patent_title] => ENRICHING DRINKING WATER WITH ZINC [patent_app_type] => utility [patent_app_number] => 17/855117 [patent_app_country] => US [patent_app_date] => 2022-06-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2220 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 19 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17855117 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/855117
ENRICHING DRINKING WATER WITH ZINC Jun 29, 2022 Abandoned
Array ( [id] => 18320033 [patent_doc_number] => 20230118161 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-04-20 [patent_title] => WATER FILTER WITH MODULE FOR QUICKLY DIAGNOSING FAULTY COMPONENT LOCATION [patent_app_type] => utility [patent_app_number] => 17/846961 [patent_app_country] => US [patent_app_date] => 2022-06-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2909 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => 0 [patent_words_short_claim] => 217 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17846961 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/846961
WATER FILTER WITH MODULE FOR QUICKLY DIAGNOSING FAULTY COMPONENT LOCATION Jun 21, 2022 Abandoned
Array ( [id] => 18841627 [patent_doc_number] => 20230404030 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-12-21 [patent_title] => Water Trough Cleaner [patent_app_type] => utility [patent_app_number] => 17/841492 [patent_app_country] => US [patent_app_date] => 2022-06-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 739 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [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] => 17841492 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/841492
Water Trough Cleaner Jun 14, 2022 Abandoned
Array ( [id] => 18056854 [patent_doc_number] => 20220387940 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-12-08 [patent_title] => GRAPHENE-POLYAMIDE COMPOSITE MEMBRANES AND MICROPARTICLES, METHODS OF MANUFACTURE, AND METHODS OF USE [patent_app_type] => utility [patent_app_number] => 17/834387 [patent_app_country] => US [patent_app_date] => 2022-06-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7252 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 47 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17834387 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/834387
GRAPHENE-POLYAMIDE COMPOSITE MEMBRANES AND MICROPARTICLES, METHODS OF MANUFACTURE, AND METHODS OF USE Jun 6, 2022 Pending
Array ( [id] => 18817308 [patent_doc_number] => 20230391648 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-12-07 [patent_title] => Method and A Process to Remove Inorganic and Organic Substances from Water [patent_app_type] => utility [patent_app_number] => 17/833236 [patent_app_country] => US [patent_app_date] => 2022-06-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6753 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -69 [patent_words_short_claim] => 210 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17833236 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/833236
Method and A Process to Remove Inorganic and Organic Substances from Water Jun 5, 2022 Pending
Array ( [id] => 18036019 [patent_doc_number] => 20220380234 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-12-01 [patent_title] => ELECTROCATALYTIC DEGRADATION DEVICE FOR ORGANIC WASTEWATER [patent_app_type] => utility [patent_app_number] => 17/827544 [patent_app_country] => US [patent_app_date] => 2022-05-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2377 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [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] => 17827544 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/827544
ELECTROCATALYTIC DEGRADATION DEVICE FOR ORGANIC WASTEWATER May 26, 2022 Pending
Array ( [id] => 18036019 [patent_doc_number] => 20220380234 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-12-01 [patent_title] => ELECTROCATALYTIC DEGRADATION DEVICE FOR ORGANIC WASTEWATER [patent_app_type] => utility [patent_app_number] => 17/827544 [patent_app_country] => US [patent_app_date] => 2022-05-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2377 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [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] => 17827544 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/827544
ELECTROCATALYTIC DEGRADATION DEVICE FOR ORGANIC WASTEWATER May 26, 2022 Pending
Array ( [id] => 17655820 [patent_doc_number] => 20220176285 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-06-09 [patent_title] => FILTRATION FILTER [patent_app_type] => utility [patent_app_number] => 17/652617 [patent_app_country] => US [patent_app_date] => 2022-02-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6222 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 71 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17652617 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/652617
FILTRATION FILTER Feb 24, 2022 Pending
Array ( [id] => 17627079 [patent_doc_number] => 20220162094 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-05-26 [patent_title] => High performance electrocoagulation systems for removing water contaminants [patent_app_type] => utility [patent_app_number] => 17/670560 [patent_app_country] => US [patent_app_date] => 2022-02-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10636 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 31 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17670560 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/670560
High performance electrocoagulation systems for removing water contaminants Feb 13, 2022 Abandoned
Array ( [id] => 19939175 [patent_doc_number] => 12311290 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-05-27 [patent_title] => Enclosed media fluid filtration device [patent_app_type] => utility [patent_app_number] => 17/576361 [patent_app_country] => US [patent_app_date] => 2022-01-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 12 [patent_no_of_words] => 0 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 132 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17576361 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/576361
Enclosed media fluid filtration device Jan 13, 2022 Issued
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