Search

Xuemei Zheng

Examiner (ID: 3624, Phone: (571)272-1434 , Office: P/2693 )

Most Active Art Unit
2693
Art Unit(s)
2629, 2693
Total Applications
777
Issued Applications
616
Pending Applications
58
Abandoned Applications
110

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20628452 [patent_doc_number] => 20260092736 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-04-02 [patent_title] => DIRECT AIR CAPTURE OF CO2 [patent_app_type] => utility [patent_app_number] => 19/339061 [patent_app_country] => US [patent_app_date] => 2025-09-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2422 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -21 [patent_words_short_claim] => 365 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19339061 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/339061
Direct air capture of CO2 Sep 23, 2025 Issued
Array ( [id] => 20057832 [patent_doc_number] => 20250196054 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-06-19 [patent_title] => GRADIENT SEPARATOR SYSTEM AND METHOD [patent_app_type] => utility [patent_app_number] => 19/045204 [patent_app_country] => US [patent_app_date] => 2025-02-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 19289 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 138 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19045204 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/045204
Gradient separator system and method Feb 3, 2025 Issued
Array ( [id] => 20120789 [patent_doc_number] => 20250235820 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-07-24 [patent_title] => Carbon Capture Adapter [patent_app_type] => utility [patent_app_number] => 19/034386 [patent_app_country] => US [patent_app_date] => 2025-01-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11005 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 140 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19034386 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/034386
Carbon capture adapter Jan 21, 2025 Issued
Array ( [id] => 19909519 [patent_doc_number] => 12285710 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-04-29 [patent_title] => Filter for carbon dioxide adsorption [patent_app_type] => utility [patent_app_number] => 18/961688 [patent_app_country] => US [patent_app_date] => 2024-11-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 7 [patent_no_of_words] => 0 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 68 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18961688 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/961688
Filter for carbon dioxide adsorption Nov 26, 2024 Issued
Array ( [id] => 19744414 [patent_doc_number] => 20250032979 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-30 [patent_title] => DIRECT CAPTURE OF CARBON DIOXIDE [patent_app_type] => utility [patent_app_number] => 18/916589 [patent_app_country] => US [patent_app_date] => 2024-10-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11119 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [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] => 18916589 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/916589
Direct capture of carbon dioxide Oct 14, 2024 Issued
Array ( [id] => 19904278 [patent_doc_number] => 12281274 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-04-22 [patent_title] => System and method for producing renewable natural gas from biogas [patent_app_type] => utility [patent_app_number] => 18/910756 [patent_app_country] => US [patent_app_date] => 2024-10-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 9363 [patent_no_of_claims] => 57 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 418 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18910756 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/910756
System and method for producing renewable natural gas from biogas Oct 8, 2024 Issued
Array ( [id] => 19777714 [patent_doc_number] => 12226735 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-02-18 [patent_title] => Ionized gas separation arrangement [patent_app_type] => utility [patent_app_number] => 18/894605 [patent_app_country] => US [patent_app_date] => 2024-09-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 14 [patent_no_of_words] => 12932 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 120 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18894605 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/894605
Ionized gas separation arrangement Sep 23, 2024 Issued
Array ( [id] => 19657375 [patent_doc_number] => 20240424440 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-26 [patent_title] => SYSTEMS AND METHODS FOR REMOVING CARBON DIOXIDE FROM A FLUID [patent_app_type] => utility [patent_app_number] => 18/830374 [patent_app_country] => US [patent_app_date] => 2024-09-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 16770 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -29 [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] => 18830374 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/830374
Systems and methods for removing carbon dioxide from a fluid Sep 9, 2024 Issued
Array ( [id] => 19629894 [patent_doc_number] => 20240408343 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-12 [patent_title] => O2 CONCENTRATOR WITH SIEVE BED BYPASS AND CONTROL METHOD THEREOF [patent_app_type] => utility [patent_app_number] => 18/809825 [patent_app_country] => US [patent_app_date] => 2024-08-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12059 [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] => 18809825 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/809825
O2 CONCENTRATOR WITH SIEVE BED BYPASS AND CONTROL METHOD THEREOF Aug 19, 2024 Pending
Array ( [id] => 19700430 [patent_doc_number] => 12194433 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-01-14 [patent_title] => Polyimide membranes incorporating diselenide functionality for selective separation of CO [patent_app_type] => utility [patent_app_number] => 18/805958 [patent_app_country] => US [patent_app_date] => 2024-08-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2637 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 24 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18805958 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/805958
Polyimide membranes incorporating diselenide functionality for selective separation of CO Aug 14, 2024 Issued
Array ( [id] => 19623173 [patent_doc_number] => 12161966 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-12-10 [patent_title] => System and method for segregating component gases from atmospheric air [patent_app_type] => utility [patent_app_number] => 18/796434 [patent_app_country] => US [patent_app_date] => 2024-08-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 12 [patent_no_of_words] => 15075 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 258 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18796434 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/796434
System and method for segregating component gases from atmospheric air Aug 6, 2024 Issued
Array ( [id] => 19717721 [patent_doc_number] => 12203248 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-01-21 [patent_title] => Rapid hygroscopic atmospheric water generator [patent_app_type] => utility [patent_app_number] => 18/765540 [patent_app_country] => US [patent_app_date] => 2024-07-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 31 [patent_figures_cnt] => 70 [patent_no_of_words] => 7274 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 2 [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] => 18765540 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/765540
Rapid hygroscopic atmospheric water generator Jul 22, 2024 Issued
Array ( [id] => 19674860 [patent_doc_number] => 12186699 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-01-07 [patent_title] => Cryogen chamber with adsorber [patent_app_type] => utility [patent_app_number] => 18/766818 [patent_app_country] => US [patent_app_date] => 2024-07-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 7877 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 104 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18766818 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/766818
Cryogen chamber with adsorber Jul 8, 2024 Issued
Array ( [id] => 19666420 [patent_doc_number] => 12179142 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-12-31 [patent_title] => Mixed matrix membrane with a covalent organic framework for selective CO [patent_app_type] => utility [patent_app_number] => 18/765778 [patent_app_country] => US [patent_app_date] => 2024-07-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 26 [patent_no_of_words] => 11230 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 97 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18765778 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/765778
Mixed matrix membrane with a covalent organic framework for selective CO Jul 7, 2024 Issued
Array ( [id] => 19564920 [patent_doc_number] => 12139682 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-11-12 [patent_title] => System and method for producing renewable natural gas from biogas [patent_app_type] => utility [patent_app_number] => 18/766045 [patent_app_country] => US [patent_app_date] => 2024-07-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 13579 [patent_no_of_claims] => 43 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 576 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18766045 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/766045
System and method for producing renewable natural gas from biogas Jul 7, 2024 Issued
Array ( [id] => 20363148 [patent_doc_number] => 20250352960 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-11-20 [patent_title] => STIRRING ASSEMBLY AND MILK FROTHER [patent_app_type] => utility [patent_app_number] => 18/747801 [patent_app_country] => US [patent_app_date] => 2024-06-19 [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] => -19 [patent_words_short_claim] => 102 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18747801 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/747801
STIRRING ASSEMBLY AND MILK FROTHER Jun 18, 2024 Pending
Array ( [id] => 19641745 [patent_doc_number] => 20240416265 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-19 [patent_title] => FILTER STRUCTURE [patent_app_type] => utility [patent_app_number] => 18/744854 [patent_app_country] => US [patent_app_date] => 2024-06-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8557 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 151 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18744854 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/744854
FILTER STRUCTURE Jun 16, 2024 Pending
Array ( [id] => 19786442 [patent_doc_number] => 20250060121 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-20 [patent_title] => AIR POLLUTION PREVENTION SYSTEM FOR BATHROOM SPACE [patent_app_type] => utility [patent_app_number] => 18/733198 [patent_app_country] => US [patent_app_date] => 2024-06-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6935 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 271 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18733198 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/733198
AIR POLLUTION PREVENTION SYSTEM FOR BATHROOM SPACE Jun 3, 2024 Pending
Array ( [id] => 19630078 [patent_doc_number] => 20240408527 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-12 [patent_title] => FLAT-FILTER FILTER ELEMENT WITH AT LEAST TWO FILTER MEDIUM BODIES, FILTER SYSTEM AND USE OF FLAT-FILTER FILTER ELEMENT [patent_app_type] => utility [patent_app_number] => 18/731917 [patent_app_country] => US [patent_app_date] => 2024-06-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5727 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 146 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18731917 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/731917
FLAT-FILTER FILTER ELEMENT WITH AT LEAST TWO FILTER MEDIUM BODIES, FILTER SYSTEM AND USE OF FLAT-FILTER FILTER ELEMENT Jun 2, 2024 Pending
Array ( [id] => 19613604 [patent_doc_number] => 20240399284 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-05 [patent_title] => PORTABLE DEVICE FOR REMOVING GASEOUS POLLUTANTS FROM THE SURROUNDING AIR [patent_app_type] => utility [patent_app_number] => 18/680026 [patent_app_country] => US [patent_app_date] => 2024-05-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3505 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 139 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18680026 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/680026
PORTABLE DEVICE FOR REMOVING GASEOUS POLLUTANTS FROM THE SURROUNDING AIR May 30, 2024 Pending
Menu