Search

Kawing Chan

Examiner (ID: 3066, Phone: (571)270-3909 , Office: P/2837 )

Most Active Art Unit
2837
Art Unit(s)
4147, 2846, 2837
Total Applications
953
Issued Applications
686
Pending Applications
62
Abandoned Applications
235

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 19701362 [patent_doc_number] => 12195369 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-01-14 [patent_title] => Water treatment device [patent_app_type] => utility [patent_app_number] => 17/040634 [patent_app_country] => US [patent_app_date] => 2019-03-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 17948 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 259 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17040634 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/040634
Water treatment device Mar 4, 2019 Issued
Array ( [id] => 19667377 [patent_doc_number] => 12180103 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-12-31 [patent_title] => Treatment of saline water for agricultural and potable use and for generation of disinfectant solution [patent_app_type] => utility [patent_app_number] => 16/287203 [patent_app_country] => US [patent_app_date] => 2019-02-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 31 [patent_figures_cnt] => 33 [patent_no_of_words] => 26463 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 113 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16287203 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/287203
Treatment of saline water for agricultural and potable use and for generation of disinfectant solution Feb 26, 2019 Issued
Array ( [id] => 14438651 [patent_doc_number] => 20190177197 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-06-13 [patent_title] => PROCESSES FOR TREATMENT OF RESIDUALS [patent_app_type] => utility [patent_app_number] => 16/277701 [patent_app_country] => US [patent_app_date] => 2019-02-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6726 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 205 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16277701 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/277701
PROCESSES FOR TREATMENT OF RESIDUALS Feb 14, 2019 Abandoned
Array ( [id] => 17800049 [patent_doc_number] => 11414329 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-08-16 [patent_title] => Treatment of cyanotoxin-containing water [patent_app_type] => utility [patent_app_number] => 16/275894 [patent_app_country] => US [patent_app_date] => 2019-02-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 3001 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 152 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16275894 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/275894
Treatment of cyanotoxin-containing water Feb 13, 2019 Issued
Array ( [id] => 14716503 [patent_doc_number] => 20190249315 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-08-15 [patent_title] => PROCESS FOR IMPROVING CARBON CONVERSION EFFICIENCY [patent_app_type] => utility [patent_app_number] => 16/273933 [patent_app_country] => US [patent_app_date] => 2019-02-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13787 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 96 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16273933 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/273933
Process for improving carbon conversion efficiency Feb 11, 2019 Issued
Array ( [id] => 17665202 [patent_doc_number] => 11358883 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-06-14 [patent_title] => System and method for using ultramicroporous carbon for the selective removal of nitrate with capacitive deionization [patent_app_type] => utility [patent_app_number] => 16/268154 [patent_app_country] => US [patent_app_date] => 2019-02-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 14 [patent_no_of_words] => 4840 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 188 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16268154 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/268154
System and method for using ultramicroporous carbon for the selective removal of nitrate with capacitive deionization Feb 4, 2019 Issued
Array ( [id] => 18979115 [patent_doc_number] => 11904270 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-02-20 [patent_title] => Regeneration system for carbon-rich amine solutions and method for using the same [patent_app_type] => utility [patent_app_number] => 16/260516 [patent_app_country] => US [patent_app_date] => 2019-01-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 7 [patent_no_of_words] => 9809 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 468 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16260516 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/260516
Regeneration system for carbon-rich amine solutions and method for using the same Jan 28, 2019 Issued
Array ( [id] => 18044751 [patent_doc_number] => 11518692 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-12-06 [patent_title] => Electrocoagulation system [patent_app_type] => utility [patent_app_number] => 16/252443 [patent_app_country] => US [patent_app_date] => 2019-01-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 12 [patent_no_of_words] => 6787 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 133 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16252443 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/252443
Electrocoagulation system Jan 17, 2019 Issued
Array ( [id] => 16800490 [patent_doc_number] => 10995414 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-05-04 [patent_title] => Electrochemical process for improving the grade of iron [patent_app_type] => utility [patent_app_number] => 16/250742 [patent_app_country] => US [patent_app_date] => 2019-01-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 24 [patent_figures_cnt] => 40 [patent_no_of_words] => 43816 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 69 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16250742 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/250742
Electrochemical process for improving the grade of iron Jan 16, 2019 Issued
Array ( [id] => 16109319 [patent_doc_number] => 20200206682 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-07-02 [patent_title] => SYSTEM AND METHOD FOR ADJUSTING CARBON DIOXIDE AND WATER CONCENTRATIONS IN AN ENVIRONMENT [patent_app_type] => utility [patent_app_number] => 16/235182 [patent_app_country] => US [patent_app_date] => 2018-12-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8477 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [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] => 16235182 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/235182
SYSTEM AND METHOD FOR ADJUSTING CARBON DIOXIDE AND WATER CONCENTRATIONS IN AN ENVIRONMENT Dec 27, 2018 Abandoned
Array ( [id] => 16800099 [patent_doc_number] => 10995019 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-05-04 [patent_title] => Heating apparatus and water electrolysis system [patent_app_type] => utility [patent_app_number] => 16/229000 [patent_app_country] => US [patent_app_date] => 2018-12-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 5168 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 270 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16229000 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/229000
Heating apparatus and water electrolysis system Dec 20, 2018 Issued
Array ( [id] => 18427891 [patent_doc_number] => 11673093 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-06-13 [patent_title] => Electro-controllable ion exchange membrane [patent_app_type] => utility [patent_app_number] => 16/226774 [patent_app_country] => US [patent_app_date] => 2018-12-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 2396 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [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] => 16226774 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/226774
Electro-controllable ion exchange membrane Dec 19, 2018 Issued
Array ( [id] => 16831995 [patent_doc_number] => 11008234 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-05-18 [patent_title] => Reactors and methods for producing and recovering extracellular metal or metalloid nanoparticles [patent_app_type] => utility [patent_app_number] => 16/225397 [patent_app_country] => US [patent_app_date] => 2018-12-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 24 [patent_no_of_words] => 8357 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 187 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16225397 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/225397
Reactors and methods for producing and recovering extracellular metal or metalloid nanoparticles Dec 18, 2018 Issued
Array ( [id] => 15346145 [patent_doc_number] => 20200010964 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-01-09 [patent_title] => METHODS OF AND SYSTEMS FOR ELECTROCHEMICAL REDUCTION OF SUBSTRATES [patent_app_type] => utility [patent_app_number] => 16/224503 [patent_app_country] => US [patent_app_date] => 2018-12-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8785 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 60 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16224503 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/224503
METHODS OF AND SYSTEMS FOR ELECTROCHEMICAL REDUCTION OF SUBSTRATES Dec 17, 2018 Abandoned
Array ( [id] => 17208042 [patent_doc_number] => 11168403 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-11-09 [patent_title] => High-efficiency oxygen reduction to hydrogen peroxide catalyzed by oxidized carbon materials [patent_app_type] => utility [patent_app_number] => 16/221122 [patent_app_country] => US [patent_app_date] => 2018-12-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 23 [patent_no_of_words] => 4882 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 88 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16221122 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/221122
High-efficiency oxygen reduction to hydrogen peroxide catalyzed by oxidized carbon materials Dec 13, 2018 Issued
Array ( [id] => 14101963 [patent_doc_number] => 20190092657 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-03-28 [patent_title] => ELECTROCOAGULATION UNIT [patent_app_type] => utility [patent_app_number] => 16/203998 [patent_app_country] => US [patent_app_date] => 2018-11-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 23478 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 70 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16203998 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/203998
Electrocoagulation unit Nov 28, 2018 Issued
Array ( [id] => 18520950 [patent_doc_number] => 11710845 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-07-25 [patent_title] => Systems, devices, and methods employing electrochemical processing with oxygen as carrier gas [patent_app_type] => utility [patent_app_number] => 16/202019 [patent_app_country] => US [patent_app_date] => 2018-11-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 18 [patent_figures_cnt] => 43 [patent_no_of_words] => 15038 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 267 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16202019 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/202019
Systems, devices, and methods employing electrochemical processing with oxygen as carrier gas Nov 26, 2018 Issued
Array ( [id] => 18368356 [patent_doc_number] => 11648506 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-05-16 [patent_title] => Electrochemical desalination system [patent_app_type] => utility [patent_app_number] => 16/200309 [patent_app_country] => US [patent_app_date] => 2018-11-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 26 [patent_figures_cnt] => 34 [patent_no_of_words] => 13363 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 369 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16200309 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/200309
Electrochemical desalination system Nov 25, 2018 Issued
Array ( [id] => 16512763 [patent_doc_number] => 20200392021 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-12-17 [patent_title] => METHODS AND APPARATUSES FOR OXIDANT CONCENTRATION CONTROL [patent_app_type] => utility [patent_app_number] => 16/958543 [patent_app_country] => US [patent_app_date] => 2018-11-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2403 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [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] => 16958543 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/958543
METHODS AND APPARATUSES FOR OXIDANT CONCENTRATION CONTROL Nov 18, 2018 Abandoned
Array ( [id] => 14071917 [patent_doc_number] => 20190084846 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-03-21 [patent_title] => SYSTEM FOR TREATING WATER [patent_app_type] => utility [patent_app_number] => 16/188807 [patent_app_country] => US [patent_app_date] => 2018-11-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2334 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [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] => 16188807 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/188807
System for treating water Nov 12, 2018 Issued
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