Search

Lessanework T. Seifu

Examiner (ID: 4022, Phone: (571)270-3153 , Office: P/1774 )

Most Active Art Unit
1774
Art Unit(s)
1709, 1797, 1774
Total Applications
1374
Issued Applications
1083
Pending Applications
93
Abandoned Applications
234

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 17368763 [patent_doc_number] => 20220023815 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-01-27 [patent_title] => PROCESS FOR PROVIDING A HOMOGENOUS SLURRY CONTAINING PARTICLES [patent_app_type] => utility [patent_app_number] => 17/297438 [patent_app_country] => US [patent_app_date] => 2019-11-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2562 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [patent_words_short_claim] => 253 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17297438 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/297438
Process for providing a homogenous slurry containing particles Nov 27, 2019 Issued
Array ( [id] => 17384456 [patent_doc_number] => 20220032308 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-02-03 [patent_title] => A DEVICE FOR CONDUCTING BIOLOGICAL AMPLIFICATION REACTIONS [patent_app_type] => utility [patent_app_number] => 17/296384 [patent_app_country] => US [patent_app_date] => 2019-11-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3156 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 120 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17296384 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/296384
Device for conducting biological amplification reactions Nov 25, 2019 Issued
Array ( [id] => 16925131 [patent_doc_number] => 11046592 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-06-29 [patent_title] => Production of reactive oxidative species by photocat alytic activation of chlorine (I) under ultraviolet/visible light/near infrared irradiation [patent_app_type] => utility [patent_app_number] => 16/696454 [patent_app_country] => US [patent_app_date] => 2019-11-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 13 [patent_no_of_words] => 2405 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 60 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16696454 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/696454
Production of reactive oxidative species by photocat alytic activation of chlorine (I) under ultraviolet/visible light/near infrared irradiation Nov 25, 2019 Issued
Array ( [id] => 18574590 [patent_doc_number] => 11731097 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-08-22 [patent_title] => Catalyst particle shape [patent_app_type] => utility [patent_app_number] => 17/292125 [patent_app_country] => US [patent_app_date] => 2019-11-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 13 [patent_no_of_words] => 4503 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 205 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17292125 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/292125
Catalyst particle shape Nov 18, 2019 Issued
Array ( [id] => 16847911 [patent_doc_number] => 20210148656 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-05-20 [patent_title] => REFORMER BOX WITH REFORMER TUNNEL INCLUDING TUNNEL PORT [patent_app_type] => utility [patent_app_number] => 16/686325 [patent_app_country] => US [patent_app_date] => 2019-11-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4007 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 71 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16686325 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/686325
Reformer box with reformer tunnel including tunnel port Nov 17, 2019 Issued
Array ( [id] => 18043930 [patent_doc_number] => 11517867 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-12-06 [patent_title] => Apparatus for installing a thermocouple inside a reactor tube filled with catalyst [patent_app_type] => utility [patent_app_number] => 16/665377 [patent_app_country] => US [patent_app_date] => 2019-10-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 14 [patent_no_of_words] => 2565 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 50 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16665377 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/665377
Apparatus for installing a thermocouple inside a reactor tube filled with catalyst Oct 27, 2019 Issued
Array ( [id] => 17593688 [patent_doc_number] => 20220143261 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-05-12 [patent_title] => PHOTOCATALYST AND PREPARATION METHOD THEREFOR [patent_app_type] => utility [patent_app_number] => 17/284774 [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] => 6016 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 20 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17284774 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/284774
PHOTOCATALYST AND PREPARATION METHOD THEREFOR Oct 24, 2019 Abandoned
Array ( [id] => 16368107 [patent_doc_number] => 10799843 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-10-13 [patent_title] => Bi-modal radial flow reactor [patent_app_type] => utility [patent_app_number] => 16/655618 [patent_app_country] => US [patent_app_date] => 2019-10-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 14 [patent_no_of_words] => 15339 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 209 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16655618 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/655618
Bi-modal radial flow reactor Oct 16, 2019 Issued
Array ( [id] => 15799873 [patent_doc_number] => 20200123079 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-04-23 [patent_title] => METHOD OF PRODUCING HYDROCARBON AND APPARATUS FOR PRODUCING HYDROCARBON [patent_app_type] => utility [patent_app_number] => 16/653718 [patent_app_country] => US [patent_app_date] => 2019-10-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8971 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 60 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16653718 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/653718
Method of producing hydrocarbon and apparatus for producing hydrocarbon Oct 14, 2019 Issued
Array ( [id] => 15454573 [patent_doc_number] => 20200040111 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-02-06 [patent_title] => REACTOR [patent_app_type] => utility [patent_app_number] => 16/653723 [patent_app_country] => US [patent_app_date] => 2019-10-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6029 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 247 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16653723 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/653723
Reactor Oct 14, 2019 Issued
Array ( [id] => 16276709 [patent_doc_number] => 10759723 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-09-01 [patent_title] => Methods and systems of upgrading heavy aromatics stream to petrochemical feedstock [patent_app_type] => utility [patent_app_number] => 16/600285 [patent_app_country] => US [patent_app_date] => 2019-10-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 8109 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 226 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16600285 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/600285
Methods and systems of upgrading heavy aromatics stream to petrochemical feedstock Oct 10, 2019 Issued
Array ( [id] => 16742383 [patent_doc_number] => 10967354 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2021-04-06 [patent_title] => Method of manufacturing bio-diesel and reactor [patent_app_type] => utility [patent_app_number] => 16/599335 [patent_app_country] => US [patent_app_date] => 2019-10-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 15 [patent_no_of_words] => 11591 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 208 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16599335 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/599335
Method of manufacturing bio-diesel and reactor Oct 10, 2019 Issued
Array ( [id] => 18289142 [patent_doc_number] => 11618000 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-04-04 [patent_title] => Reactor with a pathway extension valve [patent_app_type] => utility [patent_app_number] => 17/283498 [patent_app_country] => US [patent_app_date] => 2019-10-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 13 [patent_no_of_words] => 11057 [patent_no_of_claims] => 26 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 62 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17283498 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/283498
Reactor with a pathway extension valve Oct 6, 2019 Issued
Array ( [id] => 19310710 [patent_doc_number] => 12036504 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-07-16 [patent_title] => Atmosphere purification reactor using electron beam and atmosphere purification apparatus including the same [patent_app_type] => utility [patent_app_number] => 17/288644 [patent_app_country] => US [patent_app_date] => 2019-09-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 19 [patent_no_of_words] => 7172 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 191 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17288644 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/288644
Atmosphere purification reactor using electron beam and atmosphere purification apparatus including the same Sep 29, 2019 Issued
Array ( [id] => 15928783 [patent_doc_number] => 20200156025 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-05-21 [patent_title] => TWO STAGE GAS-GAS MIXER [patent_app_type] => utility [patent_app_number] => 16/582129 [patent_app_country] => US [patent_app_date] => 2019-09-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3129 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 16582129 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/582129
Two stage gas-gas mixer Sep 24, 2019 Issued
Array ( [id] => 18223962 [patent_doc_number] => 20230062956 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-02 [patent_title] => EXTERNAL LOOP SLURRY REACTOR [patent_app_type] => utility [patent_app_number] => 16/976442 [patent_app_country] => US [patent_app_date] => 2019-09-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4237 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 246 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16976442 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/976442
External loop slurry reactor Sep 23, 2019 Issued
Array ( [id] => 16519510 [patent_doc_number] => 10870720 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-12-22 [patent_title] => Polyolefin production with chromium-based catalysts [patent_app_type] => utility [patent_app_number] => 16/577088 [patent_app_country] => US [patent_app_date] => 2019-09-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 12 [patent_no_of_words] => 37039 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 171 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16577088 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/577088
Polyolefin production with chromium-based catalysts Sep 19, 2019 Issued
Array ( [id] => 17881603 [patent_doc_number] => 20220297080 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-09-22 [patent_title] => DEVICE FOR CONTINUOUSLY PREPARING 2,6-DIHYDROXYBENZALDEHYDE [patent_app_type] => utility [patent_app_number] => 17/642194 [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] => 5510 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 108 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17642194 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/642194
Device for continuously preparing 2,6-dihydroxybenzaldehyde Sep 11, 2019 Issued
Array ( [id] => 16712158 [patent_doc_number] => 20210079305 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-03-18 [patent_title] => SYSTEM FOR CONVERSION OF CRUDE OIL TO PETROCHEMICALS AND FUEL PRODUCTS INTEGRATING VACUUM GAS OIL HYDROTREATING AND STEAM CRACKING [patent_app_type] => utility [patent_app_number] => 16/568774 [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] => 26726 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [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] => 16568774 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/568774
System for conversion of crude oil to petrochemicals and fuel products integrating vacuum gas oil hydrotreating and steam cracking Sep 11, 2019 Issued
Array ( [id] => 16712158 [patent_doc_number] => 20210079305 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-03-18 [patent_title] => SYSTEM FOR CONVERSION OF CRUDE OIL TO PETROCHEMICALS AND FUEL PRODUCTS INTEGRATING VACUUM GAS OIL HYDROTREATING AND STEAM CRACKING [patent_app_type] => utility [patent_app_number] => 16/568774 [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] => 26726 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [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] => 16568774 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/568774
System for conversion of crude oil to petrochemicals and fuel products integrating vacuum gas oil hydrotreating and steam cracking Sep 11, 2019 Issued
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