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] => 16596948 [patent_doc_number] => 20210023479 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-01-28 [patent_title] => MESH FILTER FOR FUEL SUPPLY SYSTEM OF VEHICLE [patent_app_type] => utility [patent_app_number] => 16/678611 [patent_app_country] => US [patent_app_date] => 2019-11-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8261 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 84 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16678611 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/678611
MESH FILTER FOR FUEL SUPPLY SYSTEM OF VEHICLE Nov 7, 2019 Abandoned
Array ( [id] => 15863735 [patent_doc_number] => 20200139271 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-05-07 [patent_title] => Two Stage Elements [patent_app_type] => utility [patent_app_number] => 16/674967 [patent_app_country] => US [patent_app_date] => 2019-11-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3494 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 153 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16674967 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/674967
Two Stage Elements Nov 4, 2019 Abandoned
Array ( [id] => 16074083 [patent_doc_number] => 20200191028 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-06-18 [patent_title] => OIL HOUSING, FILTER ELEMENT, AND VALVING ASSEMBLY FOR PROVIDING PRE-CHARGED OIL VOLUME CHANGES [patent_app_type] => utility [patent_app_number] => 16/667456 [patent_app_country] => US [patent_app_date] => 2019-10-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4366 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -20 [patent_words_short_claim] => 72 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16667456 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/667456
OIL HOUSING, FILTER ELEMENT, AND VALVING ASSEMBLY FOR PROVIDING PRE-CHARGED OIL VOLUME CHANGES Oct 28, 2019 Abandoned
Array ( [id] => 15797849 [patent_doc_number] => 20200122067 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-04-23 [patent_title] => Filter Element and Filter System for a Liquid Medium, in Particular Diesel Fuel [patent_app_type] => utility [patent_app_number] => 16/664068 [patent_app_country] => US [patent_app_date] => 2019-10-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3035 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 345 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16664068 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/664068
Filter Element and Filter System for a Liquid Medium, in Particular Diesel Fuel Oct 24, 2019 Abandoned
Array ( [id] => 17274254 [patent_doc_number] => 20210380452 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-12-09 [patent_title] => METHOD FOR TREATMENT AND RESOURCE UTILIZATION OF ACIDIC ORGANIC WASTEWATER [patent_app_type] => utility [patent_app_number] => 17/285969 [patent_app_country] => US [patent_app_date] => 2019-10-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7389 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 40 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17285969 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/285969
Method for treatment and resource utilization of acidic organic wastewater Oct 16, 2019 Issued
Array ( [id] => 15766537 [patent_doc_number] => 20200114286 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-04-16 [patent_title] => FILTER ASSEMBLY WITH FILTER ELEMENT ENDCAP HAVING INTEGRAL EXTERNAL ROUNDED POLYGON SHAPED SEALING SURFACE [patent_app_type] => utility [patent_app_number] => 16/599272 [patent_app_country] => US [patent_app_date] => 2019-10-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2307 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 89 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16599272 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/599272
FILTER ASSEMBLY WITH FILTER ELEMENT ENDCAP HAVING INTEGRAL EXTERNAL ROUNDED POLYGON SHAPED SEALING SURFACE Oct 10, 2019 Abandoned
Array ( [id] => 15451923 [patent_doc_number] => 20200038785 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-02-06 [patent_title] => STRAINER [patent_app_type] => utility [patent_app_number] => 16/598719 [patent_app_country] => US [patent_app_date] => 2019-10-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5443 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -3 [patent_words_short_claim] => 238 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16598719 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/598719
STRAINER Oct 9, 2019 Abandoned
Array ( [id] => 15766541 [patent_doc_number] => 20200114288 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-04-16 [patent_title] => FILTER ASSEMBLY WITH AUTHENTICATING FILTER ELEMENT COUPLING AND REPLACEABLE DROP-IN TWIST LOCKING FILTER ELEMENT THEREFOR [patent_app_type] => utility [patent_app_number] => 16/598434 [patent_app_country] => US [patent_app_date] => 2019-10-10 [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] => -17 [patent_words_short_claim] => 22 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16598434 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/598434
FILTER ASSEMBLY WITH AUTHENTICATING FILTER ELEMENT COUPLING AND REPLACEABLE DROP-IN TWIST LOCKING FILTER ELEMENT THEREFOR Oct 9, 2019 Pending
Array ( [id] => 15738899 [patent_doc_number] => 20200108337 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-04-09 [patent_title] => Liquid Filtering Device [patent_app_type] => utility [patent_app_number] => 16/595960 [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] => 3593 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 570 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16595960 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/595960
Liquid Filtering Device Oct 7, 2019 Abandoned
Array ( [id] => 16749087 [patent_doc_number] => 20210101096 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-04-08 [patent_title] => Water Filter System and Method [patent_app_type] => utility [patent_app_number] => 16/594030 [patent_app_country] => US [patent_app_date] => 2019-10-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1529 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [patent_words_short_claim] => 104 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16594030 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/594030
Water Filter System and Method Oct 5, 2019 Abandoned
Array ( [id] => 19903203 [patent_doc_number] => 12280190 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-04-22 [patent_title] => Fluid warming device for an extracorporeal blood treatment apparatus and method for detecting a fluid temperature at an outlet of a fluid warming device for an extracorporeal blood treatment apparatus [patent_app_type] => utility [patent_app_number] => 17/283739 [patent_app_country] => US [patent_app_date] => 2019-10-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 9 [patent_no_of_words] => 3325 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 306 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17283739 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/283739
Fluid warming device for an extracorporeal blood treatment apparatus and method for detecting a fluid temperature at an outlet of a fluid warming device for an extracorporeal blood treatment apparatus Oct 2, 2019 Issued
Array ( [id] => 16727697 [patent_doc_number] => 20210094844 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-04-01 [patent_title] => DEVICES FOR TREATING TAP WATER [patent_app_type] => utility [patent_app_number] => 16/589599 [patent_app_country] => US [patent_app_date] => 2019-10-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4723 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [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] => 16589599 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/589599
DEVICES FOR TREATING TAP WATER Sep 30, 2019 Abandoned
Array ( [id] => 19730200 [patent_doc_number] => 12208186 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-01-28 [patent_title] => Extracorporeal blood treatment device [patent_app_type] => utility [patent_app_number] => 17/275285 [patent_app_country] => US [patent_app_date] => 2019-09-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 7703 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 185 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17275285 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/275285
Extracorporeal blood treatment device Sep 15, 2019 Issued
Array ( [id] => 17398555 [patent_doc_number] => 20220040645 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-02-10 [patent_title] => SELECTIVELY PERMEABLE GRAPHENE OXIDE MEMBRANE [patent_app_type] => utility [patent_app_number] => 17/275638 [patent_app_country] => US [patent_app_date] => 2019-09-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10236 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 63 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17275638 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/275638
SELECTIVELY PERMEABLE GRAPHENE OXIDE MEMBRANE Sep 15, 2019 Abandoned
Array ( [id] => 16436061 [patent_doc_number] => 20200353386 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-11-12 [patent_title] => FILTER FOR LIQUID FILTRATION [patent_app_type] => utility [patent_app_number] => 16/572549 [patent_app_country] => US [patent_app_date] => 2019-09-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2370 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 65 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16572549 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/572549
FILTER FOR LIQUID FILTRATION Sep 15, 2019 Abandoned
Array ( [id] => 16710777 [patent_doc_number] => 20210077924 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-03-18 [patent_title] => LIQUID FILTER POSITIONING AND SEALING FEATURE [patent_app_type] => utility [patent_app_number] => 16/569029 [patent_app_country] => US [patent_app_date] => 2019-09-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5036 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 117 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16569029 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/569029
LIQUID FILTER POSITIONING AND SEALING FEATURE Sep 11, 2019 Abandoned
Array ( [id] => 19883117 [patent_doc_number] => 12268801 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-04-08 [patent_title] => Media supply arrangement for supplying a medical treatment device [patent_app_type] => utility [patent_app_number] => 17/273609 [patent_app_country] => US [patent_app_date] => 2019-09-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 9450 [patent_no_of_claims] => 25 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 151 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17273609 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/273609
Media supply arrangement for supplying a medical treatment device Sep 4, 2019 Issued
Array ( [id] => 16962756 [patent_doc_number] => 20210214255 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-07-15 [patent_title] => Dewatering Method And System [patent_app_type] => utility [patent_app_number] => 17/272863 [patent_app_country] => US [patent_app_date] => 2019-09-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15202 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -50 [patent_words_short_claim] => 25 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17272863 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/272863
Dewatering Method And System Sep 3, 2019 Pending
Array ( [id] => 17603134 [patent_doc_number] => 11331603 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-05-17 [patent_title] => Hybrid intake screen assembly [patent_app_type] => utility [patent_app_number] => 16/559058 [patent_app_country] => US [patent_app_date] => 2019-09-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3598 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 86 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16559058 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/559058
Hybrid intake screen assembly Sep 2, 2019 Issued
Array ( [id] => 16924294 [patent_doc_number] => 11045753 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-06-29 [patent_title] => Push filter with floating key lock [patent_app_type] => utility [patent_app_number] => 16/556861 [patent_app_country] => US [patent_app_date] => 2019-08-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 18 [patent_figures_cnt] => 51 [patent_no_of_words] => 9882 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 225 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16556861 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/556861
Push filter with floating key lock Aug 29, 2019 Issued
Menu