Search

Allen C. Chein

Examiner (ID: 12734, Phone: (571)270-7985 , Office: P/3627 )

Most Active Art Unit
3627
Art Unit(s)
3687, 3627
Total Applications
508
Issued Applications
207
Pending Applications
83
Abandoned Applications
239

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20143060 [patent_doc_number] => 12377377 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-08-05 [patent_title] => Filter-housing interface designs for heating, ventilation, and/or air conditioning systems [patent_app_type] => utility [patent_app_number] => 19/030102 [patent_app_country] => US [patent_app_date] => 2025-01-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 47 [patent_figures_cnt] => 95 [patent_no_of_words] => 26717 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 132 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19030102 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/030102
Filter-housing interface designs for heating, ventilation, and/or air conditioning systems Jan 16, 2025 Issued
Array ( [id] => 20143060 [patent_doc_number] => 12377377 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-08-05 [patent_title] => Filter-housing interface designs for heating, ventilation, and/or air conditioning systems [patent_app_type] => utility [patent_app_number] => 19/030102 [patent_app_country] => US [patent_app_date] => 2025-01-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 47 [patent_figures_cnt] => 95 [patent_no_of_words] => 26717 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 132 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19030102 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/030102
Filter-housing interface designs for heating, ventilation, and/or air conditioning systems Jan 16, 2025 Issued
Array ( [id] => 19940137 [patent_doc_number] => 12312258 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-05-27 [patent_title] => Graphene electrostatic filtering device [patent_app_type] => utility [patent_app_number] => 19/022300 [patent_app_country] => US [patent_app_date] => 2025-01-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 11 [patent_no_of_words] => 0 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 736 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19022300 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/022300
Graphene electrostatic filtering device Jan 14, 2025 Issued
Array ( [id] => 20006328 [patent_doc_number] => 20250144550 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-08 [patent_title] => MEETHOD OF OPERATING A RAKE SYSTEM [patent_app_type] => utility [patent_app_number] => 19/015910 [patent_app_country] => US [patent_app_date] => 2025-01-10 [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] => 2 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19015910 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/015910
MEETHOD OF OPERATING A RAKE SYSTEM Jan 9, 2025 Pending
Array ( [id] => 20006328 [patent_doc_number] => 20250144550 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-08 [patent_title] => MEETHOD OF OPERATING A RAKE SYSTEM [patent_app_type] => utility [patent_app_number] => 19/015910 [patent_app_country] => US [patent_app_date] => 2025-01-10 [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] => 2 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19015910 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/015910
MEETHOD OF OPERATING A RAKE SYSTEM Jan 9, 2025 Pending
Array ( [id] => 19983081 [patent_doc_number] => 20250121303 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-04-17 [patent_title] => OIL FILTER CARTRIDGE [patent_app_type] => utility [patent_app_number] => 18/990201 [patent_app_country] => US [patent_app_date] => 2024-12-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2331 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 367 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18990201 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/990201
OIL FILTER CARTRIDGE Dec 19, 2024 Pending
Array ( [id] => 20050966 [patent_doc_number] => 20250189188 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-06-12 [patent_title] => REFRIGERANT FILTRATION APPARATUS AND METHOD [patent_app_type] => utility [patent_app_number] => 18/974591 [patent_app_country] => US [patent_app_date] => 2024-12-09 [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] => 92 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18974591 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/974591
REFRIGERANT FILTRATION APPARATUS AND METHOD Dec 8, 2024 Abandoned
Array ( [id] => 20050966 [patent_doc_number] => 20250189188 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-06-12 [patent_title] => REFRIGERANT FILTRATION APPARATUS AND METHOD [patent_app_type] => utility [patent_app_number] => 18/974591 [patent_app_country] => US [patent_app_date] => 2024-12-09 [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] => 92 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18974591 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/974591
REFRIGERANT FILTRATION APPARATUS AND METHOD Dec 8, 2024 Abandoned
Array ( [id] => 19753207 [patent_doc_number] => 20250041772 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-06 [patent_title] => WATER PURIFICATION SYSTEM [patent_app_type] => utility [patent_app_number] => 18/927353 [patent_app_country] => US [patent_app_date] => 2024-10-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4140 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 131 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18927353 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/927353
WATER PURIFICATION SYSTEM Oct 24, 2024 Abandoned
Array ( [id] => 19280119 [patent_doc_number] => 20240216592 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-04 [patent_title] => PREPARING AN EXTRACORPOREAL BLOOD TREATMENT APPARATUS [patent_app_type] => utility [patent_app_number] => 18/608304 [patent_app_country] => US [patent_app_date] => 2024-03-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9067 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 78 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18608304 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/608304
PREPARING AN EXTRACORPOREAL BLOOD TREATMENT APPARATUS Mar 17, 2024 Pending
Array ( [id] => 19379713 [patent_doc_number] => 20240269583 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-15 [patent_title] => FILTER ASSEMBLY WITH FILTER ELEMENT ENDCAP HAVING INTEGRAL EXTERNAL ROUNDED POLYGON SHAPED SEALING SURFACE [patent_app_type] => utility [patent_app_number] => 18/583824 [patent_app_country] => US [patent_app_date] => 2024-02-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2352 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 186 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18583824 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/583824
FILTER ASSEMBLY WITH FILTER ELEMENT ENDCAP HAVING INTEGRAL EXTERNAL ROUNDED POLYGON SHAPED SEALING SURFACE Feb 20, 2024 Pending
Array ( [id] => 19379713 [patent_doc_number] => 20240269583 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-15 [patent_title] => FILTER ASSEMBLY WITH FILTER ELEMENT ENDCAP HAVING INTEGRAL EXTERNAL ROUNDED POLYGON SHAPED SEALING SURFACE [patent_app_type] => utility [patent_app_number] => 18/583824 [patent_app_country] => US [patent_app_date] => 2024-02-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2352 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 186 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18583824 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/583824
FILTER ASSEMBLY WITH FILTER ELEMENT ENDCAP HAVING INTEGRAL EXTERNAL ROUNDED POLYGON SHAPED SEALING SURFACE Feb 20, 2024 Pending
Array ( [id] => 19379715 [patent_doc_number] => 20240269585 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-15 [patent_title] => DROP-IN FILTER ELEMENT ASSEMBLIES WITH AXIAL STAGED TREATMENT [patent_app_type] => utility [patent_app_number] => 18/581567 [patent_app_country] => US [patent_app_date] => 2024-02-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3510 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 165 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18581567 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/581567
DROP-IN FILTER ELEMENT ASSEMBLIES WITH AXIAL STAGED TREATMENT Feb 19, 2024 Pending
Array ( [id] => 19737488 [patent_doc_number] => 12214302 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-02-04 [patent_title] => Oil filter cartridge [patent_app_type] => utility [patent_app_number] => 18/502769 [patent_app_country] => US [patent_app_date] => 2023-11-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 7608 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 367 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18502769 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/502769
Oil filter cartridge Nov 5, 2023 Issued
Array ( [id] => 18986760 [patent_doc_number] => 20240058729 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-22 [patent_title] => PUSH FILTER WITH FLOATING KEY LOCK [patent_app_type] => utility [patent_app_number] => 18/385580 [patent_app_country] => US [patent_app_date] => 2023-10-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13836 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 332 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18385580 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/385580
PUSH FILTER WITH FLOATING KEY LOCK Oct 30, 2023 Pending
Array ( [id] => 19410884 [patent_doc_number] => 12076679 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-09-03 [patent_title] => Filter-housing interface designs for heating, ventilation, and/or air conditioning systems [patent_app_type] => utility [patent_app_number] => 18/499042 [patent_app_country] => US [patent_app_date] => 2023-10-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 23 [patent_figures_cnt] => 38 [patent_no_of_words] => 12632 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 175 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18499042 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/499042
Filter-housing interface designs for heating, ventilation, and/or air conditioning systems Oct 30, 2023 Issued
Array ( [id] => 18970544 [patent_doc_number] => 20240050636 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-15 [patent_title] => Filter and Frame Apparatus and Method of Use [patent_app_type] => utility [patent_app_number] => 18/383131 [patent_app_country] => US [patent_app_date] => 2023-10-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3209 [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] => 18383131 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/383131
Filter and Frame Apparatus and Method of Use Oct 23, 2023 Pending
Array ( [id] => 18970544 [patent_doc_number] => 20240050636 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-15 [patent_title] => Filter and Frame Apparatus and Method of Use [patent_app_type] => utility [patent_app_number] => 18/383131 [patent_app_country] => US [patent_app_date] => 2023-10-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3209 [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] => 18383131 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/383131
Filter and Frame Apparatus and Method of Use Oct 23, 2023 Pending
Array ( [id] => 18954958 [patent_doc_number] => 20240043285 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-08 [patent_title] => WATER PURIFYING APPARATUS AND REFRIGERATOR INCLUDING THE SAME [patent_app_type] => utility [patent_app_number] => 18/380827 [patent_app_country] => US [patent_app_date] => 2023-10-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 18439 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 161 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18380827 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/380827
WATER PURIFYING APPARATUS AND REFRIGERATOR INCLUDING THE SAME Oct 16, 2023 Pending
Array ( [id] => 18954958 [patent_doc_number] => 20240043285 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-08 [patent_title] => WATER PURIFYING APPARATUS AND REFRIGERATOR INCLUDING THE SAME [patent_app_type] => utility [patent_app_number] => 18/380827 [patent_app_country] => US [patent_app_date] => 2023-10-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 18439 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 161 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18380827 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/380827
WATER PURIFYING APPARATUS AND REFRIGERATOR INCLUDING THE SAME Oct 16, 2023 Pending
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