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] => 19870585 [patent_doc_number] => 12263425 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-04-01 [patent_title] => Water purifying apparatus and refrigerator including the same [patent_app_type] => utility [patent_app_number] => 17/173068 [patent_app_country] => US [patent_app_date] => 2021-02-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 14 [patent_no_of_words] => 10735 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 348 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17173068 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/173068
Water purifying apparatus and refrigerator including the same Feb 9, 2021 Issued
Array ( [id] => 19870585 [patent_doc_number] => 12263425 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-04-01 [patent_title] => Water purifying apparatus and refrigerator including the same [patent_app_type] => utility [patent_app_number] => 17/173068 [patent_app_country] => US [patent_app_date] => 2021-02-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 14 [patent_no_of_words] => 10735 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 348 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17173068 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/173068
Water purifying apparatus and refrigerator including the same Feb 9, 2021 Issued
Array ( [id] => 16991595 [patent_doc_number] => 20210230015 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-07-29 [patent_title] => WATER PURIFIER [patent_app_type] => utility [patent_app_number] => 17/159529 [patent_app_country] => US [patent_app_date] => 2021-01-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7862 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 134 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17159529 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/159529
Water purifier Jan 26, 2021 Issued
Array ( [id] => 16822823 [patent_doc_number] => 20210138116 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-05-13 [patent_title] => Method for retaining demineralized bone matrix particles [patent_app_type] => utility [patent_app_number] => 17/155717 [patent_app_country] => US [patent_app_date] => 2021-01-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3546 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 132 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17155717 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/155717
Method for retaining demineralized bone matrix particles Jan 21, 2021 Issued
Array ( [id] => 16933247 [patent_doc_number] => 20210199136 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-07-01 [patent_title] => SPA FILTRATION SYSTEM AND METHOD [patent_app_type] => utility [patent_app_number] => 17/131327 [patent_app_country] => US [patent_app_date] => 2020-12-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4523 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 105 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17131327 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/131327
Spa filtration system and method Dec 21, 2020 Issued
Array ( [id] => 18146096 [patent_doc_number] => 20230019953 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-01-19 [patent_title] => SYSTEM FOR CAPTURING AND RECYCLING WASHING COMPONENTS [patent_app_type] => utility [patent_app_number] => 17/787224 [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] => 5316 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 99 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17787224 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/787224
SYSTEM FOR CAPTURING AND RECYCLING WASHING COMPONENTS Dec 17, 2020 Pending
Array ( [id] => 16918341 [patent_doc_number] => 20210191433 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-06-24 [patent_title] => WATER PURIFIER AND METHOD FOR CONTROLLING THE SAME [patent_app_type] => utility [patent_app_number] => 17/123615 [patent_app_country] => US [patent_app_date] => 2020-12-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5955 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 115 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17123615 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/123615
WATER PURIFIER AND METHOD FOR CONTROLLING THE SAME Dec 15, 2020 Abandoned
Array ( [id] => 17655815 [patent_doc_number] => 20220176280 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-06-09 [patent_title] => WATER FILTER [patent_app_type] => utility [patent_app_number] => 17/110433 [patent_app_country] => US [patent_app_date] => 2020-12-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4122 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 202 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17110433 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/110433
WATER FILTER Dec 2, 2020 Abandoned
Array ( [id] => 18142678 [patent_doc_number] => 20230016522 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-01-19 [patent_title] => PNEUMATIC-HYDRAULIC METHOD FOR BACK-FLUSHING AND DEVICE FOR BACK-FLUSHING FLUID FILTERS USING AN INTEGRATED FLUID-DYNAMIC CLEANING PROCESS [patent_app_type] => utility [patent_app_number] => 17/757676 [patent_app_country] => US [patent_app_date] => 2020-11-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2972 [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] => 17757676 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/757676
Pneumatic-hydraulic method for back-flushing and device for back-flushing fluid filters using an integrated fluid-dynamic cleaning process Nov 23, 2020 Issued
Array ( [id] => 17298256 [patent_doc_number] => 20210394095 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-12-23 [patent_title] => FILTER HOUSING ASSEMBLY [patent_app_type] => utility [patent_app_number] => 17/101116 [patent_app_country] => US [patent_app_date] => 2020-11-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3043 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 269 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17101116 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/101116
FILTER HOUSING ASSEMBLY Nov 22, 2020 Abandoned
Array ( [id] => 16839240 [patent_doc_number] => 20210147252 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-05-20 [patent_title] => WATER FILTRATION SYSTEM [patent_app_type] => utility [patent_app_number] => 17/099721 [patent_app_country] => US [patent_app_date] => 2020-11-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6614 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -20 [patent_words_short_claim] => 154 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17099721 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/099721
WATER FILTRATION SYSTEM Nov 15, 2020 Abandoned
Array ( [id] => 16656362 [patent_doc_number] => 20210052998 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-02-25 [patent_title] => PUSH FILTER WITH FLOATING KEY LOCK [patent_app_type] => utility [patent_app_number] => 17/082827 [patent_app_country] => US [patent_app_date] => 2020-10-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9881 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 111 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17082827 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/082827
Push filter with floating key lock Oct 27, 2020 Issued
Array ( [id] => 17341551 [patent_doc_number] => 20220007882 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-01-13 [patent_title] => Coffee Machine Filter Cartridges [patent_app_type] => utility [patent_app_number] => 17/070509 [patent_app_country] => US [patent_app_date] => 2020-10-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4670 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 74 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17070509 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/070509
Coffee machine filter cartridges Oct 13, 2020 Issued
Array ( [id] => 19066034 [patent_doc_number] => 20240100460 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-28 [patent_title] => Filter Element With Gasket Surrounding Filter Head [patent_app_type] => utility [patent_app_number] => 17/769066 [patent_app_country] => US [patent_app_date] => 2020-10-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9380 [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] => 17769066 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/769066
Filter Element With Gasket Surrounding Filter Head Oct 12, 2020 Pending
Array ( [id] => 17503872 [patent_doc_number] => 20220096974 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-03-31 [patent_title] => ADJUSTABLE RING ASSEMBLY FOR TWO-DIMENSIONAL FILTRATION [patent_app_type] => utility [patent_app_number] => 17/038801 [patent_app_country] => US [patent_app_date] => 2020-09-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5649 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 17038801 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/038801
ADJUSTABLE RING ASSEMBLY FOR TWO-DIMENSIONAL FILTRATION Sep 29, 2020 Abandoned
Array ( [id] => 18477368 [patent_doc_number] => 11691094 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-07-04 [patent_title] => Candle filter support and plate assembly for polymer melts [patent_app_type] => utility [patent_app_number] => 17/025319 [patent_app_country] => US [patent_app_date] => 2020-09-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 22 [patent_no_of_words] => 6051 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 278 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17025319 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/025319
Candle filter support and plate assembly for polymer melts Sep 17, 2020 Issued
Array ( [id] => 17481008 [patent_doc_number] => 20220088512 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-03-24 [patent_title] => BRANCHED FILTER AND METHOD OF USE [patent_app_type] => utility [patent_app_number] => 17/025262 [patent_app_country] => US [patent_app_date] => 2020-09-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5827 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 213 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17025262 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/025262
BRANCHED FILTER AND METHOD OF USE Sep 17, 2020 Abandoned
Array ( [id] => 17481007 [patent_doc_number] => 20220088511 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-03-24 [patent_title] => BRANCHED FILTER AND METHOD OF USE [patent_app_type] => utility [patent_app_number] => 17/025252 [patent_app_country] => US [patent_app_date] => 2020-09-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6953 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 197 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17025252 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/025252
BRANCHED FILTER AND METHOD OF USE Sep 17, 2020 Abandoned
Array ( [id] => 16467115 [patent_doc_number] => 20200368652 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-11-26 [patent_title] => NO FILTER NO RUN FLUID FILTRATION SYSTEM [patent_app_type] => utility [patent_app_number] => 16/990229 [patent_app_country] => US [patent_app_date] => 2020-08-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4556 [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] => 16990229 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/990229
NO FILTER NO RUN FLUID FILTRATION SYSTEM Aug 10, 2020 Abandoned
Array ( [id] => 18800306 [patent_doc_number] => 11833452 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-12-05 [patent_title] => Liquid treatment device [patent_app_type] => utility [patent_app_number] => 16/942448 [patent_app_country] => US [patent_app_date] => 2020-07-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 11 [patent_no_of_words] => 6399 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 490 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16942448 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/942448
Liquid treatment device Jul 28, 2020 Issued
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