
Aiqun Li
Examiner (ID: 992, Phone: (571)270-7736 , Office: P/1768 )
| Most Active Art Unit | 1768 |
| Art Unit(s) | 1768, 1766, 1796, 1763 |
| Total Applications | 931 |
| Issued Applications | 549 |
| Pending Applications | 106 |
| Abandoned Applications | 317 |
Applications
| Application number | Title of the application | Filing Date | Status |
|---|---|---|---|
Array
(
[id] => 19778670
[patent_doc_number] => 12227694
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2025-02-18
[patent_title] => Microbial products and uses thereof to improve oil recovery
[patent_app_type] => utility
[patent_app_number] => 17/882138
[patent_app_country] => US
[patent_app_date] => 2022-08-05
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 12171
[patent_no_of_claims] => 3
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 77
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17882138
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/882138 | Microbial products and uses thereof to improve oil recovery | Aug 4, 2022 | Issued |
Array
(
[id] => 18666431
[patent_doc_number] => 11773309
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2023-10-03
[patent_title] => Divalent brine fluids having improved rheology and multifunctional properties
[patent_app_type] => utility
[patent_app_number] => 17/879955
[patent_app_country] => US
[patent_app_date] => 2022-08-03
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 3691
[patent_no_of_claims] => 12
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 183
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17879955
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/879955 | Divalent brine fluids having improved rheology and multifunctional properties | Aug 2, 2022 | Issued |
Array
(
[id] => 19556667
[patent_doc_number] => 20240368459
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-11-07
[patent_title] => GUAR GUM FRACTURING FLUID GEL AND GUAR GUM FRACTURING FLUID SYSTEM WITH REDUCED pH DEPENDENCE, AS WELL AS PREPARATION METHOD AND APPLICATION THEREOF
[patent_app_type] => utility
[patent_app_number] => 18/031360
[patent_app_country] => US
[patent_app_date] => 2022-07-28
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 4464
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -19
[patent_words_short_claim] => 85
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18031360
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/031360 | GUAR GUM FRACTURING FLUID GEL AND GUAR GUM FRACTURING FLUID SYSTEM WITH REDUCED pH DEPENDENCE, AS WELL AS PREPARATION METHOD AND APPLICATION THEREOF | Jul 27, 2022 | Pending |
Array
(
[id] => 18166135
[patent_doc_number] => 20230032736
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2023-02-02
[patent_title] => PREPARATION METHOD FOR THE PLANT-BASED NANO CORROSION INHIBITION BACTERICIDE FOR OILFIELD AND APPLICATION THEREOF
[patent_app_type] => utility
[patent_app_number] => 17/863859
[patent_app_country] => US
[patent_app_date] => 2022-07-13
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 3012
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -5
[patent_words_short_claim] => 155
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17863859
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/863859 | Preparation method for the plant-based nano corrosion inhibition bactericide for oilfield and application thereof | Jul 12, 2022 | Issued |
Array
(
[id] => 18604828
[patent_doc_number] => 11746281
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2023-09-05
[patent_title] => Crosslinked proppant-gel matrix
[patent_app_type] => utility
[patent_app_number] => 17/864076
[patent_app_country] => US
[patent_app_date] => 2022-07-13
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 3
[patent_figures_cnt] => 6
[patent_no_of_words] => 3530
[patent_no_of_claims] => 19
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 66
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17864076
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/864076 | Crosslinked proppant-gel matrix | Jul 12, 2022 | Issued |
Array
(
[id] => 18005210
[patent_doc_number] => 20220363976
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2022-11-17
[patent_title] => ALKYL LACTONE-DERIVED HYDROXYAMIDES AND ALKYL LACTONE-DERIVED HYDROXYESTERS FOR THE CONTROL OF NATURAL GAS HYDRATES
[patent_app_type] => utility
[patent_app_number] => 17/861360
[patent_app_country] => US
[patent_app_date] => 2022-07-11
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 7647
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -17
[patent_words_short_claim] => 37
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17861360
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/861360 | Alkyl lactone-derived hydroxyamides and alkyl lactone-derived hydroxyesters for the control of natural gas hydrates | Jul 10, 2022 | Issued |
Array
(
[id] => 18143445
[patent_doc_number] => 20230017294
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2023-01-19
[patent_title] => FLOCCULATING AGENT FOR REMOVING OIL-BASED DRILLING FLUID ROCK CUTTINGS AND PREPARATION METHOD AND USE THEREOF
[patent_app_type] => utility
[patent_app_number] => 17/857390
[patent_app_country] => US
[patent_app_date] => 2022-07-05
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 7724
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -14
[patent_words_short_claim] => 95
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17857390
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/857390 | FLOCCULATING AGENT FOR REMOVING OIL-BASED DRILLING FLUID ROCK CUTTINGS AND PREPARATION METHOD AND USE THEREOF | Jul 4, 2022 | Abandoned |
Array
(
[id] => 18862151
[patent_doc_number] => 20230416587
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2023-12-28
[patent_title] => C-36 DIMER DIAMINE HYDROCHLORIDE SALT AS PRIMARY VISCOSIFIER FOR INVERT-EMULSION DRILLING FLUIDS
[patent_app_type] => utility
[patent_app_number] => 17/850368
[patent_app_country] => US
[patent_app_date] => 2022-06-27
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 4168
[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] => 17850368
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/850368 | C-36 dimer diamine hydrochloride salt as primary viscosifier for invert-emulsion drilling fluids | Jun 26, 2022 | Issued |
Array
(
[id] => 17933752
[patent_doc_number] => 20220328878
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2022-10-13
[patent_title] => Non-Aqueous Electrolyte Solution and Energy Device
[patent_app_type] => utility
[patent_app_number] => 17/837270
[patent_app_country] => US
[patent_app_date] => 2022-06-10
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 24081
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -18
[patent_words_short_claim] => 48
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17837270
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/837270 | Non-Aqueous Electrolyte Solution and Energy Device | Jun 9, 2022 | Pending |
Array
(
[id] => 17933752
[patent_doc_number] => 20220328878
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2022-10-13
[patent_title] => Non-Aqueous Electrolyte Solution and Energy Device
[patent_app_type] => utility
[patent_app_number] => 17/837270
[patent_app_country] => US
[patent_app_date] => 2022-06-10
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 24081
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -18
[patent_words_short_claim] => 48
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17837270
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/837270 | Non-Aqueous Electrolyte Solution and Energy Device | Jun 9, 2022 | Pending |
Array
(
[id] => 18081824
[patent_doc_number] => 20220407436
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2022-12-22
[patent_title] => MOISTURE ENABLED ELECTRIC POWER GENERATION MATERIALS AND DEVICE
[patent_app_type] => utility
[patent_app_number] => 17/806108
[patent_app_country] => US
[patent_app_date] => 2022-06-09
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 10784
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -21
[patent_words_short_claim] => 104
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17806108
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/806108 | MOISTURE ENABLED ELECTRIC POWER GENERATION MATERIALS AND DEVICE | Jun 8, 2022 | Pending |
Array
(
[id] => 18081824
[patent_doc_number] => 20220407436
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2022-12-22
[patent_title] => MOISTURE ENABLED ELECTRIC POWER GENERATION MATERIALS AND DEVICE
[patent_app_type] => utility
[patent_app_number] => 17/806108
[patent_app_country] => US
[patent_app_date] => 2022-06-09
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 10784
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -21
[patent_words_short_claim] => 104
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17806108
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/806108 | MOISTURE ENABLED ELECTRIC POWER GENERATION MATERIALS AND DEVICE | Jun 8, 2022 | Pending |
Array
(
[id] => 17945663
[patent_doc_number] => 20220332680
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2022-10-20
[patent_title] => HYDRATED CRYSTALLINE FORM OF 2-ACRYLAMIDO-2-METHYLPROPANE SULFONIC ACID
[patent_app_type] => utility
[patent_app_number] => 17/664208
[patent_app_country] => US
[patent_app_date] => 2022-05-19
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 9784
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -14
[patent_words_short_claim] => 141
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17664208
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/664208 | Hydrated crystalline form of 2-acrylamido-2-methylpropane sulfonic acid | May 18, 2022 | Issued |
Array
(
[id] => 18085471
[patent_doc_number] => 11535588
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2022-12-27
[patent_title] => Hydrated crystalline form of 2-acrylamido-2-methylpropane sulfonic acid
[patent_app_type] => utility
[patent_app_number] => 17/664209
[patent_app_country] => US
[patent_app_date] => 2022-05-19
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 12
[patent_figures_cnt] => 16
[patent_no_of_words] => 9790
[patent_no_of_claims] => 15
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 65
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17664209
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/664209 | Hydrated crystalline form of 2-acrylamido-2-methylpropane sulfonic acid | May 18, 2022 | Issued |
Array
(
[id] => 19551030
[patent_doc_number] => 12134728
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2024-11-05
[patent_title] => Ethylene amine hydrochloride based shale inhibitor for aqueous drilling fluids
[patent_app_type] => utility
[patent_app_number] => 17/716353
[patent_app_country] => US
[patent_app_date] => 2022-04-08
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 6130
[patent_no_of_claims] => 17
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 205
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17716353
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/716353 | Ethylene amine hydrochloride based shale inhibitor for aqueous drilling fluids | Apr 7, 2022 | Issued |
Array
(
[id] => 19248956
[patent_doc_number] => 20240199943
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-06-20
[patent_title] => CRUDE OIL PRODUCTION USING A COMBINATION OF EMULSION VISCOSITY REDUCER AND SCALE INHIBITOR
[patent_app_type] => utility
[patent_app_number] => 18/554494
[patent_app_country] => US
[patent_app_date] => 2022-04-08
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 3787
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -17
[patent_words_short_claim] => 34
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18554494
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/554494 | CRUDE OIL PRODUCTION USING A COMBINATION OF EMULSION VISCOSITY REDUCER AND SCALE INHIBITOR | Apr 7, 2022 | Pending |
Array
(
[id] => 19218068
[patent_doc_number] => 20240182772
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-06-06
[patent_title] => LIGNIN-BASED COMPOSITIONS AND RELATED METHODS
[patent_app_type] => utility
[patent_app_number] => 18/285525
[patent_app_country] => US
[patent_app_date] => 2022-04-05
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 6658
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -14
[patent_words_short_claim] => 48
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18285525
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/285525 | LIGNIN-BASED COMPOSITIONS AND RELATED METHODS | Apr 4, 2022 | Pending |
Array
(
[id] => 19556656
[patent_doc_number] => 20240368448
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-11-07
[patent_title] => LIGNIN-BASED DRILLING FLUIDS AND RELATED METHODS
[patent_app_type] => utility
[patent_app_number] => 18/285583
[patent_app_country] => US
[patent_app_date] => 2022-04-05
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 3946
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -17
[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] => 18285583
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/285583 | LIGNIN-BASED DRILLING FLUIDS AND RELATED METHODS | Apr 4, 2022 | Pending |
Array
(
[id] => 19218068
[patent_doc_number] => 20240182772
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-06-06
[patent_title] => LIGNIN-BASED COMPOSITIONS AND RELATED METHODS
[patent_app_type] => utility
[patent_app_number] => 18/285525
[patent_app_country] => US
[patent_app_date] => 2022-04-05
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 6658
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -14
[patent_words_short_claim] => 48
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18285525
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/285525 | LIGNIN-BASED COMPOSITIONS AND RELATED METHODS | Apr 4, 2022 | Pending |
Array
(
[id] => 19904262
[patent_doc_number] => 12281258
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2025-04-22
[patent_title] => Removal of filter cake
[patent_app_type] => utility
[patent_app_number] => 17/657901
[patent_app_country] => US
[patent_app_date] => 2022-04-04
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 10
[patent_figures_cnt] => 10
[patent_no_of_words] => 4894
[patent_no_of_claims] => 16
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 136
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17657901
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/657901 | Removal of filter cake | Apr 3, 2022 | Issued |