
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 number | Title of the application | Filing Date | Status |
|---|---|---|---|
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 |