
Vibol Tan
Examiner (ID: 4033, Phone: (571)272-1811 , Office: P/2844 )
| Most Active Art Unit | 2819 |
| Art Unit(s) | 2844, 2819 |
| Total Applications | 2718 |
| Issued Applications | 2530 |
| Pending Applications | 32 |
| Abandoned Applications | 163 |
Applications
| Application number | Title of the application | Filing Date | Status |
|---|---|---|---|
Array
(
[id] => 20579059
[patent_doc_number] => 12571303
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2026-03-10
[patent_title] => Time dependent tracer release in stimulated gas wells using composite particles made of two different thermoplastic polyester blends of various ratios
[patent_app_type] => utility
[patent_app_number] => 18/664028
[patent_app_country] => US
[patent_app_date] => 2024-05-14
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 4
[patent_figures_cnt] => 4
[patent_no_of_words] => 1335
[patent_no_of_claims] => 5
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 326
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18664028
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/664028 | Time dependent tracer release in stimulated gas wells using composite particles made of two different thermoplastic polyester blends of various ratios | May 13, 2024 | Issued |
Array
(
[id] => 19564904
[patent_doc_number] => 12139666
[patent_country] => US
[patent_kind] => B1
[patent_issue_date] => 2024-11-12
[patent_title] => Effervescent tablet for enhanced oil recovery and enhanced oil recovery method using the same
[patent_app_type] => utility
[patent_app_number] => 18/650499
[patent_app_country] => US
[patent_app_date] => 2024-04-30
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 1
[patent_figures_cnt] => 1
[patent_no_of_words] => 3922
[patent_no_of_claims] => 10
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 53
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18650499
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/650499 | Effervescent tablet for enhanced oil recovery and enhanced oil recovery method using the same | Apr 29, 2024 | Issued |
Array
(
[id] => 20321554
[patent_doc_number] => 20250333642
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2025-10-30
[patent_title] => TRACER RELEASE IN STIMULATED GAS WELLS USING PARTIALLY DEGRADABLE THERMOPLASTIC POLYAMIDE PARTICULATES
[patent_app_type] => utility
[patent_app_number] => 18/651517
[patent_app_country] => US
[patent_app_date] => 2024-04-30
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 0
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -15
[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] => 18651517
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/651517 | TRACER RELEASE IN STIMULATED GAS WELLS USING PARTIALLY DEGRADABLE THERMOPLASTIC POLYAMIDE PARTICULATES | Apr 29, 2024 | Pending |
Array
(
[id] => 19884570
[patent_doc_number] => 12270266
[patent_country] => US
[patent_kind] => B1
[patent_issue_date] => 2025-04-08
[patent_title] => Method of removing hydrogen sulfide from a subterranean geological formation with an imidazolate-based nanomaterial in an oil-based drilling fluid
[patent_app_type] => utility
[patent_app_number] => 18/648003
[patent_app_country] => US
[patent_app_date] => 2024-04-26
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 6
[patent_figures_cnt] => 9
[patent_no_of_words] => 9204
[patent_no_of_claims] => 20
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 123
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18648003
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/648003 | Method of removing hydrogen sulfide from a subterranean geological formation with an imidazolate-based nanomaterial in an oil-based drilling fluid | Apr 25, 2024 | Issued |
Array
(
[id] => 20309334
[patent_doc_number] => 20250326963
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2025-10-23
[patent_title] => DRILLING WITH WATER-BASED MUD INCLUDING MULTIPLE CLAYS
[patent_app_type] => utility
[patent_app_number] => 18/643715
[patent_app_country] => US
[patent_app_date] => 2024-04-23
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 2030
[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] => 18643715
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/643715 | DRILLING WITH WATER-BASED MUD INCLUDING MULTIPLE CLAYS | Apr 22, 2024 | Pending |
Array
(
[id] => 20241135
[patent_doc_number] => 12421444
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2025-09-23
[patent_title] => Polymers and nanoparticles for flooding
[patent_app_type] => utility
[patent_app_number] => 18/635495
[patent_app_country] => US
[patent_app_date] => 2024-04-15
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 10
[patent_figures_cnt] => 13
[patent_no_of_words] => 1036
[patent_no_of_claims] => 20
[patent_no_of_ind_claims] => 3
[patent_words_short_claim] => 82
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18635495
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/635495 | Polymers and nanoparticles for flooding | Apr 14, 2024 | Issued |
Array
(
[id] => 20492797
[patent_doc_number] => 12534660
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2026-01-27
[patent_title] => Methods for cementing wellbores utilizing spacer fluids that include surfactant packages
[patent_app_type] => utility
[patent_app_number] => 18/631829
[patent_app_country] => US
[patent_app_date] => 2024-04-10
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 2
[patent_figures_cnt] => 2
[patent_no_of_words] => 3685
[patent_no_of_claims] => 19
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 200
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18631829
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/631829 | Methods for cementing wellbores utilizing spacer fluids that include surfactant packages | Apr 9, 2024 | Issued |
Array
(
[id] => 20288918
[patent_doc_number] => 20250314161
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2025-10-09
[patent_title] => METHOD FOR GENERATING CO2 IN SITU FOR OILFIELD APPLICATIONS USING PROPYLENE CARBONATE
[patent_app_type] => utility
[patent_app_number] => 18/626253
[patent_app_country] => US
[patent_app_date] => 2024-04-03
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 0
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -17
[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] => 18626253
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/626253 | METHOD FOR GENERATING CO2 IN SITU FOR OILFIELD APPLICATIONS USING PROPYLENE CARBONATE | Apr 2, 2024 | Pending |
Array
(
[id] => 19809652
[patent_doc_number] => 12241023
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2025-03-04
[patent_title] => In-situ composite polymeric structures for far-field diversion during hydraulic fracturing
[patent_app_type] => utility
[patent_app_number] => 18/623159
[patent_app_country] => US
[patent_app_date] => 2024-04-01
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 10
[patent_figures_cnt] => 10
[patent_no_of_words] => 7561
[patent_no_of_claims] => 20
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 129
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18623159
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/623159 | In-situ composite polymeric structures for far-field diversion during hydraulic fracturing | Mar 31, 2024 | Issued |
Array
(
[id] => 20279609
[patent_doc_number] => 20250304851
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2025-10-02
[patent_title] => METHODS AND COMPOSITIONS USED IN CONTROLLING FORMATION SAND PRODUCTION, PROPPANT FLOWBACK, AND FINES MIGRATION
[patent_app_type] => utility
[patent_app_number] => 18/620285
[patent_app_country] => US
[patent_app_date] => 2024-03-28
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 6927
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -19
[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] => 18620285
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/620285 | METHODS AND COMPOSITIONS USED IN CONTROLLING FORMATION SAND PRODUCTION, PROPPANT FLOWBACK, AND FINES MIGRATION | Mar 27, 2024 | Abandoned |
Array
(
[id] => 20280150
[patent_doc_number] => 20250305392
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2025-10-02
[patent_title] => CARBON DIOXIDE MINERALIZATION AND STORAGE
[patent_app_type] => utility
[patent_app_number] => 18/619731
[patent_app_country] => US
[patent_app_date] => 2024-03-28
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 1292
[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] => 18619731
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/619731 | Carbon dioxide mineralization and storage | Mar 27, 2024 | Issued |
Array
(
[id] => 20505999
[patent_doc_number] => 12540268
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2026-02-03
[patent_title] => Method for stabilizing wellbore, stabilized wellbore and wellbore stabilizing fluid
[patent_app_type] => utility
[patent_app_number] => 18/620446
[patent_app_country] => US
[patent_app_date] => 2024-03-28
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 5
[patent_figures_cnt] => 10
[patent_no_of_words] => 0
[patent_no_of_claims] => 10
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 103
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18620446
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/620446 | Method for stabilizing wellbore, stabilized wellbore and wellbore stabilizing fluid | Mar 27, 2024 | Issued |
Array
(
[id] => 20343615
[patent_doc_number] => 12467339
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2025-11-11
[patent_title] => Carbon dioxide mineralization and storage
[patent_app_type] => utility
[patent_app_number] => 18/596472
[patent_app_country] => US
[patent_app_date] => 2024-03-05
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 1
[patent_figures_cnt] => 1
[patent_no_of_words] => 0
[patent_no_of_claims] => 19
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 240
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18596472
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/596472 | Carbon dioxide mineralization and storage | Mar 4, 2024 | Issued |
Array
(
[id] => 20194194
[patent_doc_number] => 20250270904
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2025-08-28
[patent_title] => Remediating Failed Isolation in Plug-and-Perforation Operations
[patent_app_type] => utility
[patent_app_number] => 18/588998
[patent_app_country] => US
[patent_app_date] => 2024-02-27
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 0
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -12
[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] => 18588998
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/588998 | Remediating failed isolation in plug-and-perforation operations | Feb 26, 2024 | Issued |
Array
(
[id] => 19098486
[patent_doc_number] => 20240117714
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-04-11
[patent_title] => METHOD FOR INCREASING CRUDE OIL PRODUCTION BY CO2 STORAGE IN AQUIFER AND DUMPFLOODING
[patent_app_type] => utility
[patent_app_number] => 18/393277
[patent_app_country] => US
[patent_app_date] => 2023-12-21
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 2746
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => 0
[patent_words_short_claim] => 464
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18393277
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/393277 | METHOD FOR INCREASING CRUDE OIL PRODUCTION BY CO2 STORAGE IN AQUIFER AND DUMPFLOODING | Dec 20, 2023 | Abandoned |
Array
(
[id] => 20264285
[patent_doc_number] => 12435261
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2025-10-07
[patent_title] => Methods for microbial gas production and use as isotopic tracer
[patent_app_type] => utility
[patent_app_number] => 18/393361
[patent_app_country] => US
[patent_app_date] => 2023-12-21
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 8
[patent_figures_cnt] => 11
[patent_no_of_words] => 0
[patent_no_of_claims] => 17
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 257
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18393361
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/393361 | Methods for microbial gas production and use as isotopic tracer | Dec 20, 2023 | Issued |
Array
(
[id] => 19098008
[patent_doc_number] => 20240117236
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-04-11
[patent_title] => MIXTURE FOR PRE-CEMENTING OPERATION IN WELLBORE
[patent_app_type] => utility
[patent_app_number] => 18/543002
[patent_app_country] => US
[patent_app_date] => 2023-12-18
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 6931
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -17
[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] => 18543002
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/543002 | Mixture for pre-cementing operation in wellbore | Dec 17, 2023 | Issued |
Array
(
[id] => 19067462
[patent_doc_number] => 20240101888
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-03-28
[patent_title] => Enhanced Carbon Sequestration via Foam Cementing
[patent_app_type] => utility
[patent_app_number] => 18/515803
[patent_app_country] => US
[patent_app_date] => 2023-11-21
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 11816
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -19
[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] => 18515803
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/515803 | Enhanced Carbon Sequestration via Foam Cementing | Nov 20, 2023 | Pending |
Array
(
[id] => 19034373
[patent_doc_number] => 20240084188
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-03-14
[patent_title] => SUPER HYDROPHOBIC 2D NANOSHEET MATERIALS FOR IMPROVED OIL RECOVERY
[patent_app_type] => utility
[patent_app_number] => 18/508715
[patent_app_country] => US
[patent_app_date] => 2023-11-14
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 4147
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -17
[patent_words_short_claim] => 26
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18508715
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/508715 | SUPER HYDROPHOBIC 2D NANOSHEET MATERIALS FOR IMPROVED OIL RECOVERY | Nov 13, 2023 | Pending |
Array
(
[id] => 20007657
[patent_doc_number] => 20250145879
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2025-05-08
[patent_title] => Method of Detecting Flow Assurance Using a Tagged Asphaltene Inhibitor
[patent_app_type] => utility
[patent_app_number] => 18/387939
[patent_app_country] => US
[patent_app_date] => 2023-11-08
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 2102
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -17
[patent_words_short_claim] => 144
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18387939
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/387939 | Method of Detecting Flow Assurance Using a Tagged Asphaltene Inhibitor | Nov 7, 2023 | Pending |