Search

Lois L. Zheng

Examiner (ID: 7344, Phone: (571)272-1248 , Office: P/1733 )

Most Active Art Unit
1733
Art Unit(s)
1733, 1742, 1793
Total Applications
1150
Issued Applications
663
Pending Applications
150
Abandoned Applications
347

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 18511788 [patent_doc_number] => 20230227980 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-07-20 [patent_title] => ALUMINUM ALLOY PRETREATMENT WITH PHOSPHORUS- CONTAINING ORGANIC ACIDS FOR SURFACE MODIFICATION [patent_app_type] => utility [patent_app_number] => 17/998590 [patent_app_country] => US [patent_app_date] => 2021-06-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 24077 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 17998590 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/998590
ALUMINUM ALLOY PRETREATMENT WITH PHOSPHORUS- CONTAINING ORGANIC ACIDS FOR SURFACE MODIFICATION Jun 8, 2021 Pending
Array ( [id] => 19181283 [patent_doc_number] => 11987867 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-05-21 [patent_title] => Recycling method for manufacturing high speed steel master alloy from high speed steel processing process waste [patent_app_type] => utility [patent_app_number] => 18/035561 [patent_app_country] => US [patent_app_date] => 2021-06-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 4106 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 435 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18035561 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/035561
Recycling method for manufacturing high speed steel master alloy from high speed steel processing process waste Jun 2, 2021 Issued
Array ( [id] => 17097317 [patent_doc_number] => 20210285108 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-09-16 [patent_title] => COPPER OR COPPER ALLOY ARTICLE COMPRISING SURFACE-MODIFIED POLYESTER-BASED RESIN AND MANUFACTURING METHOD [patent_app_type] => utility [patent_app_number] => 17/335453 [patent_app_country] => US [patent_app_date] => 2021-06-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13882 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [patent_words_short_claim] => 193 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17335453 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/335453
COPPER OR COPPER ALLOY ARTICLE COMPRISING SURFACE-MODIFIED POLYESTER-BASED RESIN AND MANUFACTURING METHOD May 31, 2021 Abandoned
Array ( [id] => 18452200 [patent_doc_number] => 20230193479 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-06-22 [patent_title] => GALVANIZED STEEL SHEET [patent_app_type] => utility [patent_app_number] => 17/925648 [patent_app_country] => US [patent_app_date] => 2021-05-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8043 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 75 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17925648 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/925648
GALVANIZED STEEL SHEET May 17, 2021 Pending
Array ( [id] => 20256390 [patent_doc_number] => 12428733 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-09-30 [patent_title] => Passivation composition based on mixtures of phosphoric and phosphonic acids [patent_app_type] => utility [patent_app_number] => 17/244152 [patent_app_country] => US [patent_app_date] => 2021-04-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2936 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 193 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17244152 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/244152
Passivation composition based on mixtures of phosphoric and phosphonic acids Apr 28, 2021 Issued
Array ( [id] => 18709672 [patent_doc_number] => 20230332294 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-19 [patent_title] => PROCESS FOR IMPROVING CHARACTERISTICS OF GALVANIZED SURFACES [patent_app_type] => utility [patent_app_number] => 18/028766 [patent_app_country] => US [patent_app_date] => 2021-04-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2845 [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] => 18028766 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/028766
Process for improving characteristics of galvanized surfaces Apr 7, 2021 Issued
Array ( [id] => 18391850 [patent_doc_number] => 20230160068 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-05-25 [patent_title] => METHOD FOR FORMING A BLACK-PASSIVATION LAYER ON A ZINC-IRON ALLOY AND BLACK- PASSIVATION COMPOSITION [patent_app_type] => utility [patent_app_number] => 17/916619 [patent_app_country] => US [patent_app_date] => 2021-04-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7493 [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] => 17916619 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/916619
METHOD FOR FORMING A BLACK-PASSIVATION LAYER ON A ZINC-IRON ALLOY AND BLACK- PASSIVATION COMPOSITION Mar 31, 2021 Pending
Array ( [id] => 16963332 [patent_doc_number] => 20210214831 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-07-15 [patent_title] => PROTECTIVE SURFACE ON STAINLESS STEEL [patent_app_type] => utility [patent_app_number] => 17/214652 [patent_app_country] => US [patent_app_date] => 2021-03-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7234 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -24 [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] => 17214652 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/214652
Protective surface on stainless steel Mar 25, 2021 Issued
Array ( [id] => 19676280 [patent_doc_number] => 12188132 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-01-07 [patent_title] => Sanitary equipment part and method of producing the same [patent_app_type] => utility [patent_app_number] => 17/212537 [patent_app_country] => US [patent_app_date] => 2021-03-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 10 [patent_no_of_words] => 15699 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 242 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17212537 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/212537
Sanitary equipment part and method of producing the same Mar 24, 2021 Issued
Array ( [id] => 18297922 [patent_doc_number] => 20230107608 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-04-06 [patent_title] => CONVERSION COATING FOR CANS CONTAINING HYDROGEN SULFIDE PRODUCING LIQUIDS [patent_app_type] => utility [patent_app_number] => 17/907105 [patent_app_country] => US [patent_app_date] => 2021-03-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13780 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 88 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17907105 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/907105
CONVERSION COATING FOR CANS CONTAINING HYDROGEN SULFIDE PRODUCING LIQUIDS Mar 22, 2021 Pending
Array ( [id] => 17170863 [patent_doc_number] => 20210324533 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-10-21 [patent_title] => ANODIZING OF SHAPE MEMORY MATERIALS [patent_app_type] => utility [patent_app_number] => 17/198825 [patent_app_country] => US [patent_app_date] => 2021-03-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2942 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 41 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17198825 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/198825
ANODIZING OF SHAPE MEMORY MATERIALS Mar 10, 2021 Abandoned
Array ( [id] => 18270201 [patent_doc_number] => 20230091443 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-23 [patent_title] => ONE-STEP PRETREATMENT METHOD OF METALLIC SUBSTRATES FOR METAL COLD FORMING [patent_app_type] => utility [patent_app_number] => 17/904969 [patent_app_country] => US [patent_app_date] => 2021-02-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9257 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 149 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17904969 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/904969
ONE-STEP PRETREATMENT METHOD OF METALLIC SUBSTRATES FOR METAL COLD FORMING Feb 24, 2021 Pending
Array ( [id] => 20715667 [patent_doc_number] => 12630906 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-05-19 [patent_title] => High corrosion and heat resistant aluminum alloy [patent_app_type] => utility [patent_app_number] => 17/800122 [patent_app_country] => US [patent_app_date] => 2021-02-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 0 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 75 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17800122 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/800122
High corrosion and heat resistant aluminum alloy Feb 15, 2021 Issued
Array ( [id] => 18181261 [patent_doc_number] => 20230041990 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-02-09 [patent_title] => HOT-ROLLED STEEL SHEET AND METHOD FOR MANUFACTURING SAME [patent_app_type] => utility [patent_app_number] => 17/787857 [patent_app_country] => US [patent_app_date] => 2021-02-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 16248 [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] => 17787857 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/787857
Hot-rolled steel sheet and method for manufacturing same Feb 4, 2021 Issued
Array ( [id] => 18225270 [patent_doc_number] => 20230064264 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-02 [patent_title] => METHOD FOR THE SURFACE TREATMENT OF ALUMINIUM-BASED PARTS [patent_app_type] => utility [patent_app_number] => 17/759465 [patent_app_country] => US [patent_app_date] => 2021-01-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6391 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 17759465 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/759465
METHOD FOR THE SURFACE TREATMENT OF ALUMINIUM-BASED PARTS Jan 20, 2021 Pending
Array ( [id] => 18148889 [patent_doc_number] => 20230022746 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-01-26 [patent_title] => ALUMINUM ALLOY FOIL [patent_app_type] => utility [patent_app_number] => 17/788678 [patent_app_country] => US [patent_app_date] => 2020-12-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4158 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -3 [patent_words_short_claim] => 30 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17788678 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/788678
ALUMINUM ALLOY FOIL Dec 24, 2020 Pending
Array ( [id] => 18239482 [patent_doc_number] => 20230071793 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-09 [patent_title] => HIGH-STRENGTH STEEL SHEET AND METHOD FOR MANUFACTURING THE SAME [patent_app_type] => utility [patent_app_number] => 17/796971 [patent_app_country] => US [patent_app_date] => 2020-12-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13864 [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] => 17796971 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/796971
High-strength steel sheet and method for manufacturing the same Dec 24, 2020 Issued
Array ( [id] => 17688312 [patent_doc_number] => 20220195604 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-06-23 [patent_title] => PHOSPHATE COATING WHICH CAN BE SUBSTANTIALLY FREE OF HEXAVALENT CHROMIUM AND METHODS OF MAKING THE SAME [patent_app_type] => utility [patent_app_number] => 17/131972 [patent_app_country] => US [patent_app_date] => 2020-12-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3006 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 17131972 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/131972
Phosphate coating which can be substantially free of hexavalent chromium and methods of making the same Dec 22, 2020 Issued
Array ( [id] => 17688324 [patent_doc_number] => 20220195616 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-06-23 [patent_title] => SEALED ANODIZATION LAYER [patent_app_type] => utility [patent_app_number] => 17/127121 [patent_app_country] => US [patent_app_date] => 2020-12-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2122 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 12 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17127121 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/127121
Sealed anodization layer Dec 17, 2020 Issued
Array ( [id] => 18192405 [patent_doc_number] => 20230045924 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-02-16 [patent_title] => HOT ROLLED HIGH STRENGTH STEEL STRIP HAVING HIGH HOLE EXPANSION RATIO [patent_app_type] => utility [patent_app_number] => 17/786402 [patent_app_country] => US [patent_app_date] => 2020-12-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14156 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 334 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17786402 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/786402
HOT ROLLED HIGH STRENGTH STEEL STRIP HAVING HIGH HOLE EXPANSION RATIO Dec 17, 2020 Pending
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