Search

Lois L. Zheng

Examiner (ID: 483)

Most Active Art Unit
1733
Art Unit(s)
1742, 1793, 1733
Total Applications
1114
Issued Applications
658
Pending Applications
123
Abandoned Applications
347

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 17200581 [patent_doc_number] => 20210340676 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-11-04 [patent_title] => METHOD FOR NI-FREE PHOSPHATIZING OF METAL SURFACES AND COMPOSITION FOR USE IN SUCH A METHOD [patent_app_type] => utility [patent_app_number] => 17/282665 [patent_app_country] => US [patent_app_date] => 2019-10-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10895 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 178 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17282665 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/282665
METHOD FOR NI-FREE PHOSPHATIZING OF METAL SURFACES AND COMPOSITION FOR USE IN SUCH A METHOD Oct 7, 2019 Abandoned
Array ( [id] => 17214940 [patent_doc_number] => 20210348277 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-11-11 [patent_title] => METHOD FOR NI-FREE PHOSPHATIZING OF METAL SURFACES AND COMPOSITION FOR USE IN SUCH A METHOD [patent_app_type] => utility [patent_app_number] => 17/282607 [patent_app_country] => US [patent_app_date] => 2019-10-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10448 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 194 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17282607 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/282607
METHOD FOR NI-FREE PHOSPHATIZING OF METAL SURFACES AND COMPOSITION FOR USE IN SUCH A METHOD Oct 7, 2019 Abandoned
Array ( [id] => 18323011 [patent_doc_number] => 20230121139 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-04-20 [patent_title] => METHOD FOR PREPARING METAL OXIDE OR METAL HYDROXIDE NANO THIN-FILM MATERIAL BY MOLTEN SALT METHOD [patent_app_type] => utility [patent_app_number] => 17/618879 [patent_app_country] => US [patent_app_date] => 2019-09-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4815 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => 0 [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] => 17618879 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/618879
Method for preparing metal oxide or metal hydroxide nano thin-film material by molten salt method Sep 29, 2019 Issued
Array ( [id] => 19840420 [patent_doc_number] => 12252792 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-03-18 [patent_title] => Electrical steel sheet having insulating coating [patent_app_type] => utility [patent_app_number] => 17/430626 [patent_app_country] => US [patent_app_date] => 2019-09-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 4542 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 118 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17430626 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/430626
Electrical steel sheet having insulating coating Sep 25, 2019 Issued
Array ( [id] => 19763421 [patent_doc_number] => 12221703 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-02-11 [patent_title] => Solution based corrosion inhibitors for aluminum alloy thermal spray coatings [patent_app_type] => utility [patent_app_number] => 17/273845 [patent_app_country] => US [patent_app_date] => 2019-09-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 14 [patent_no_of_words] => 6206 [patent_no_of_claims] => 20 [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] => 17273845 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/273845
Solution based corrosion inhibitors for aluminum alloy thermal spray coatings Sep 19, 2019 Issued
Array ( [id] => 19624424 [patent_doc_number] => 12163232 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-12-10 [patent_title] => Treatment agent for chromium-free insulating coating formation, insulation-coated grain-oriented electrical steel sheet, and method for manufacturing the same [patent_app_type] => utility [patent_app_number] => 17/280253 [patent_app_country] => US [patent_app_date] => 2019-09-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 7865 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 260 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17280253 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/280253
Treatment agent for chromium-free insulating coating formation, insulation-coated grain-oriented electrical steel sheet, and method for manufacturing the same Sep 1, 2019 Issued
Array ( [id] => 15268337 [patent_doc_number] => 20190382902 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-12-19 [patent_title] => pH Stable Trivalent Chromium Coating Solutions [patent_app_type] => utility [patent_app_number] => 16/552996 [patent_app_country] => US [patent_app_date] => 2019-08-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9265 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -23 [patent_words_short_claim] => 57 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16552996 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/552996
pH Stable Trivalent Chromium Coating Solutions Aug 26, 2019 Abandoned
Array ( [id] => 15268337 [patent_doc_number] => 20190382902 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-12-19 [patent_title] => pH Stable Trivalent Chromium Coating Solutions [patent_app_type] => utility [patent_app_number] => 16/552996 [patent_app_country] => US [patent_app_date] => 2019-08-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9265 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -23 [patent_words_short_claim] => 57 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16552996 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/552996
pH Stable Trivalent Chromium Coating Solutions Aug 26, 2019 Abandoned
Array ( [id] => 19609056 [patent_doc_number] => 12157923 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-12-03 [patent_title] => High-strength hot-dip galvanized steel sheet and method for producing the same [patent_app_type] => utility [patent_app_number] => 17/417865 [patent_app_country] => US [patent_app_date] => 2019-08-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9727 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 243 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17417865 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/417865
High-strength hot-dip galvanized steel sheet and method for producing the same Aug 22, 2019 Issued
Array ( [id] => 15321295 [patent_doc_number] => 20200000977 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-01-02 [patent_title] => BIOFILM RESISTANT MEDICAL IMPLANT [patent_app_type] => utility [patent_app_number] => 16/545993 [patent_app_country] => US [patent_app_date] => 2019-08-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8426 [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] => 16545993 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/545993
Biofilm resistant medical implant Aug 19, 2019 Issued
Array ( [id] => 16628869 [patent_doc_number] => 20210047522 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-02-18 [patent_title] => TITANIUM AND MAGNESIUM COMPOUND FOR CORROSION-RESISTANT COATINGS [patent_app_type] => utility [patent_app_number] => 16/541754 [patent_app_country] => US [patent_app_date] => 2019-08-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4246 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 29 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16541754 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/541754
Titanium and magnesium compound for corrosion-resistant coatings Aug 14, 2019 Issued
Array ( [id] => 15436429 [patent_doc_number] => 20200032398 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-01-30 [patent_title] => SURFACE TREATMENT PLANT, PRECONDITIONING APPARATUS AND PROCESS FOR TREATING PROCESS MEDIUM AND/OR RINSING MEDIUM [patent_app_type] => utility [patent_app_number] => 16/520683 [patent_app_country] => US [patent_app_date] => 2019-07-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5389 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 51 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16520683 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/520683
SURFACE TREATMENT PLANT, PRECONDITIONING APPARATUS AND PROCESS FOR TREATING PROCESS MEDIUM AND/OR RINSING MEDIUM Jul 23, 2019 Abandoned
Array ( [id] => 17112284 [patent_doc_number] => 20210292881 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-09-23 [patent_title] => EROSIVE WEAR AND CORROSION RESISTANT COATINGS INCLUDING METAL CARBIDE, METAL BORIDE, METAL NITRIDE, AND CORRESPONDING METHODS [patent_app_type] => utility [patent_app_number] => 17/262374 [patent_app_country] => US [patent_app_date] => 2019-07-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6247 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 17262374 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/262374
Erosive wear and corrosion resistant coatings including metal carbide, metal boride, metal nitride, and corresponding methods Jul 22, 2019 Issued
Array ( [id] => 15408843 [patent_doc_number] => 20200024743 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-01-23 [patent_title] => ACID ZINC SULFATE METAL PRETREATMENT [patent_app_type] => utility [patent_app_number] => 16/518113 [patent_app_country] => US [patent_app_date] => 2019-07-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4155 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 35 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16518113 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/518113
Acid zinc sulfate metal pretreatment Jul 21, 2019 Issued
Array ( [id] => 15087189 [patent_doc_number] => 20190338405 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-11-07 [patent_title] => High Conductivity Magnesium Alloy [patent_app_type] => utility [patent_app_number] => 16/504621 [patent_app_country] => US [patent_app_date] => 2019-07-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13902 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -27 [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] => 16504621 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/504621
High conductivity magnesium alloy Jul 7, 2019 Issued
Array ( [id] => 15210213 [patent_doc_number] => 20190367793 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-12-05 [patent_title] => INTRINSICALLY SAFE, EFFICIENT RICH GLYCOL FURNACE COOLANTS [patent_app_type] => utility [patent_app_number] => 16/449464 [patent_app_country] => US [patent_app_date] => 2019-06-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7282 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 83 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16449464 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/449464
INTRINSICALLY SAFE, EFFICIENT RICH GLYCOL FURNACE COOLANTS Jun 23, 2019 Abandoned
Array ( [id] => 15324941 [patent_doc_number] => 20200002800 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-01-02 [patent_title] => BLACK PLATED STEEL SHEET AND MANUFACTURING METHOD THEREFOR [patent_app_type] => utility [patent_app_number] => 16/448017 [patent_app_country] => US [patent_app_date] => 2019-06-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4097 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 53 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16448017 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/448017
Black plated steel sheet and manufacturing method therefor Jun 20, 2019 Issued
Array ( [id] => 18043714 [patent_doc_number] => 11517649 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-12-06 [patent_title] => Protected magnesium alloys for bioresorbable stents [patent_app_type] => utility [patent_app_number] => 16/442740 [patent_app_country] => US [patent_app_date] => 2019-06-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 20 [patent_no_of_words] => 13279 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 49 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16442740 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/442740
Protected magnesium alloys for bioresorbable stents Jun 16, 2019 Issued
Array ( [id] => 18102728 [patent_doc_number] => 11542607 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-01-03 [patent_title] => Process for the rapid blackening of surgical needles [patent_app_type] => utility [patent_app_number] => 16/437542 [patent_app_country] => US [patent_app_date] => 2019-06-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 9122 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 4 [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] => 16437542 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/437542
Process for the rapid blackening of surgical needles Jun 10, 2019 Issued
Array ( [id] => 14868917 [patent_doc_number] => 20190284700 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-09-19 [patent_title] => METHOD FOR CORROSION-PROTECTIVE AND CLEANING PRETREATMENT OF METALLIC COMPONENTS [patent_app_type] => utility [patent_app_number] => 16/432125 [patent_app_country] => US [patent_app_date] => 2019-06-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3563 [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] => 16432125 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/432125
Method for corrosion-protective and cleaning pretreatment of metallic components Jun 4, 2019 Issued
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