Search

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 numberTitle of the applicationFiling DateStatus
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
Menu