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] => 16359798 [patent_doc_number] => 20200316549 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-10-08 [patent_title] => APPARATUS FOR PRODUCING WATER-ABSORBING RESIN PARTICLES [patent_app_type] => utility [patent_app_number] => 16/909145 [patent_app_country] => US [patent_app_date] => 2020-06-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12071 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 127 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16909145 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/909145
Apparatus for producing water-absorbing resin particles Jun 22, 2020 Issued
Array ( [id] => 17783854 [patent_doc_number] => 11406959 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-08-09 [patent_title] => Micro-interface strengthening reaction system and method for preparing polyethylene by using a solution process [patent_app_type] => utility [patent_app_number] => 17/617950 [patent_app_country] => US [patent_app_date] => 2020-06-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 4902 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 578 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17617950 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/617950
Micro-interface strengthening reaction system and method for preparing polyethylene by using a solution process Jun 17, 2020 Issued
Array ( [id] => 17291417 [patent_doc_number] => 20210387256 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-12-16 [patent_title] => METHOD AND EQUIPMENT FOR REMOVING ORGANIC BINDERS FROM GREEN BODIES [patent_app_type] => utility [patent_app_number] => 16/900881 [patent_app_country] => US [patent_app_date] => 2020-06-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3406 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 96 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16900881 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/900881
METHOD AND EQUIPMENT FOR REMOVING ORGANIC BINDERS FROM GREEN BODIES Jun 12, 2020 Abandoned
Array ( [id] => 19353327 [patent_doc_number] => 12053753 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-08-06 [patent_title] => Apparatus and method for preparing aerogel blanket [patent_app_type] => utility [patent_app_number] => 17/416619 [patent_app_country] => US [patent_app_date] => 2020-06-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 6539 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 340 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17416619 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/416619
Apparatus and method for preparing aerogel blanket Jun 9, 2020 Issued
Array ( [id] => 18854158 [patent_doc_number] => 11851721 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-12-26 [patent_title] => Device for continuously producing sugar by hydrolyzation using lignocellulosic raw material [patent_app_type] => utility [patent_app_number] => 16/894353 [patent_app_country] => US [patent_app_date] => 2020-06-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 4954 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 199 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16894353 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/894353
Device for continuously producing sugar by hydrolyzation using lignocellulosic raw material Jun 4, 2020 Issued
Array ( [id] => 16710831 [patent_doc_number] => 20210077978 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-03-18 [patent_title] => MULTIFUNCTIONAL INTENSIFIED REACTOR DEVICE WITH INTEGRATED HEAT AND MASS TRANSFER [patent_app_type] => utility [patent_app_number] => 16/892949 [patent_app_country] => US [patent_app_date] => 2020-06-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12405 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -22 [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] => 16892949 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/892949
Multifunctional intensified reactor device with integrated heat and mass transfer Jun 3, 2020 Issued
Array ( [id] => 16482855 [patent_doc_number] => 20200376455 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-12-03 [patent_title] => INLET DIFFUSER FOR FIXED-BED REACTORS [patent_app_type] => utility [patent_app_number] => 16/890153 [patent_app_country] => US [patent_app_date] => 2020-06-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5114 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 148 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16890153 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/890153
Inlet diffuser for fixed-bed reactors Jun 1, 2020 Issued
Array ( [id] => 16985589 [patent_doc_number] => 11072747 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-07-27 [patent_title] => Fluid catalytic cracking process and apparatus for maximizing light olefin yield and other applications [patent_app_type] => utility [patent_app_number] => 16/888916 [patent_app_country] => US [patent_app_date] => 2020-06-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 17233 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 263 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16888916 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/888916
Fluid catalytic cracking process and apparatus for maximizing light olefin yield and other applications May 31, 2020 Issued
Array ( [id] => 17193002 [patent_doc_number] => 11161739 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-11-02 [patent_title] => Process and reactor comprising a plurality of catalyst receptacles [patent_app_type] => utility [patent_app_number] => 16/886202 [patent_app_country] => US [patent_app_date] => 2020-05-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 13 [patent_no_of_words] => 8315 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 192 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16886202 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/886202
Process and reactor comprising a plurality of catalyst receptacles May 27, 2020 Issued
Array ( [id] => 17258320 [patent_doc_number] => 20210371305 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-12-02 [patent_title] => LIQUID TREATMENT APPARATUS [patent_app_type] => utility [patent_app_number] => 16/885300 [patent_app_country] => US [patent_app_date] => 2020-05-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5300 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 51 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16885300 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/885300
Liquid treatment apparatus May 27, 2020 Issued
Array ( [id] => 16482860 [patent_doc_number] => 20200376460 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-12-03 [patent_title] => COMPARTMENTALIZED OLIGOMERIZATION REACTOR [patent_app_type] => utility [patent_app_number] => 16/884934 [patent_app_country] => US [patent_app_date] => 2020-05-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5364 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 155 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16884934 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/884934
Compartmentalized oligomerization reactor May 26, 2020 Issued
Array ( [id] => 17014397 [patent_doc_number] => 11084017 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2021-08-10 [patent_title] => Lazarev reactor 3: continuous production process of two-dimensional polymer tubes [patent_app_type] => utility [patent_app_number] => 16/882194 [patent_app_country] => US [patent_app_date] => 2020-05-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 4286 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 122 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16882194 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/882194
Lazarev reactor 3: continuous production process of two-dimensional polymer tubes May 21, 2020 Issued
Array ( [id] => 16970385 [patent_doc_number] => 11066344 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-07-20 [patent_title] => Methods and systems of upgrading heavy aromatics stream to petrochemical feedstock [patent_app_type] => utility [patent_app_number] => 16/879212 [patent_app_country] => US [patent_app_date] => 2020-05-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 8697 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 213 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16879212 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/879212
Methods and systems of upgrading heavy aromatics stream to petrochemical feedstock May 19, 2020 Issued
Array ( [id] => 17735417 [patent_doc_number] => 20220220876 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-07-14 [patent_title] => VEHICLE EXHAUST GAS PURIFICATION DEVICE, CORRESPONDING PRODUCTION METHOD, EXHAUST LINE AND VEHICLE [patent_app_type] => utility [patent_app_number] => 17/610728 [patent_app_country] => US [patent_app_date] => 2020-05-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7191 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -20 [patent_words_short_claim] => 82 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17610728 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/610728
Vehicle exhaust gas purification device, corresponding production method, exhaust line and vehicle May 4, 2020 Issued
Array ( [id] => 16420977 [patent_doc_number] => 20200346175 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-11-05 [patent_title] => DEVICES AND SYSTEMS FOR WATER TREATMENT [patent_app_type] => utility [patent_app_number] => 16/864372 [patent_app_country] => US [patent_app_date] => 2020-05-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9504 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -26 [patent_words_short_claim] => 183 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16864372 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/864372
Devices and systems for water treatment Apr 30, 2020 Issued
Array ( [id] => 17490343 [patent_doc_number] => 11279632 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-03-22 [patent_title] => Fluid treatment reactor [patent_app_type] => utility [patent_app_number] => 16/855939 [patent_app_country] => US [patent_app_date] => 2020-04-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 28 [patent_no_of_words] => 18215 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 17 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16855939 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/855939
Fluid treatment reactor Apr 21, 2020 Issued
Array ( [id] => 19922846 [patent_doc_number] => 12297116 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-05-13 [patent_title] => System for manufacturing fumed silica particles [patent_app_type] => utility [patent_app_number] => 16/849951 [patent_app_country] => US [patent_app_date] => 2020-04-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 0 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 289 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16849951 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/849951
System for manufacturing fumed silica particles Apr 14, 2020 Issued
Array ( [id] => 19922846 [patent_doc_number] => 12297116 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-05-13 [patent_title] => System for manufacturing fumed silica particles [patent_app_type] => utility [patent_app_number] => 16/849951 [patent_app_country] => US [patent_app_date] => 2020-04-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 0 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 289 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16849951 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/849951
System for manufacturing fumed silica particles Apr 14, 2020 Issued
Array ( [id] => 16375419 [patent_doc_number] => 20200324261 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-10-15 [patent_title] => THREE-PHASE REACTOR WITH RECYCLE CUP OF DECREASING SECTION AND OF VARIABLE ANGLE OF INCLINATION [patent_app_type] => utility [patent_app_number] => 16/845977 [patent_app_country] => US [patent_app_date] => 2020-04-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10872 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 236 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16845977 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/845977
Three-phase reactor with recycle cup of decreasing section and of variable angle of inclination Apr 9, 2020 Issued
Array ( [id] => 17655869 [patent_doc_number] => 20220176334 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-06-09 [patent_title] => PROCESS AND APPARATUS FOR SEQUENTIAL SYNTHESIS OF BIOLOGICAL POLYMERS [patent_app_type] => utility [patent_app_number] => 17/442015 [patent_app_country] => US [patent_app_date] => 2020-04-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8269 [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] => 17442015 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/442015
Process and apparatus for sequential synthesis of biological polymers Apr 8, 2020 Issued
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