Search

Lessanework T. Seifu

Examiner (ID: 17823, Phone: (571)270-3153 , Office: P/1774 )

Most Active Art Unit
1774
Art Unit(s)
1774, 1709, 1797
Total Applications
1424
Issued Applications
1114
Pending Applications
93
Abandoned Applications
240

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 18284982 [patent_doc_number] => 20230100454 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-30 [patent_title] => AIR TREATMENT UNIT [patent_app_type] => utility [patent_app_number] => 17/951335 [patent_app_country] => US [patent_app_date] => 2022-09-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3692 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 95 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17951335 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/951335
Air treatment unit Sep 22, 2022 Issued
Array ( [id] => 20413270 [patent_doc_number] => 12496533 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-16 [patent_title] => Methanol and sulfuric acid co-production system [patent_app_type] => utility [patent_app_number] => 17/945796 [patent_app_country] => US [patent_app_date] => 2022-09-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 0 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 3 [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] => 17945796 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/945796
Methanol and sulfuric acid co-production system Sep 14, 2022 Issued
Array ( [id] => 18596359 [patent_doc_number] => 20230271150 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-31 [patent_title] => HIGH TEMPERATURE THERMAL PROCESS SYSTEMS [patent_app_type] => utility [patent_app_number] => 17/931441 [patent_app_country] => US [patent_app_date] => 2022-09-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9497 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 17931441 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/931441
HIGH TEMPERATURE THERMAL PROCESS SYSTEMS Sep 11, 2022 Pending
Array ( [id] => 18374808 [patent_doc_number] => 20230149887 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-05-18 [patent_title] => REACTOR FILTER WASHER DRIER (R-FWD) APPARATUS AND METHODS OF USE THEREOF [patent_app_type] => utility [patent_app_number] => 17/931220 [patent_app_country] => US [patent_app_date] => 2022-09-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13119 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 260 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17931220 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/931220
REACTOR FILTER WASHER DRIER (R-FWD) APPARATUS AND METHODS OF USE THEREOF Sep 11, 2022 Abandoned
Array ( [id] => 19042414 [patent_doc_number] => 11931487 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-03-19 [patent_title] => Articles formed of pulp base materials with modulated scent release [patent_app_type] => utility [patent_app_number] => 17/821684 [patent_app_country] => US [patent_app_date] => 2022-08-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 80 [patent_figures_cnt] => 94 [patent_no_of_words] => 16182 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 103 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17821684 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/821684
Articles formed of pulp base materials with modulated scent release Aug 22, 2022 Issued
Array ( [id] => 18986810 [patent_doc_number] => 20240058779 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-22 [patent_title] => USE OF A CONTINUOUS CATALYST REGENERATION TYPE REFORMER FOR THE AROMAX(r) CATALYST PROCESS [patent_app_type] => utility [patent_app_number] => 17/820665 [patent_app_country] => US [patent_app_date] => 2022-08-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 20789 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 17820665 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/820665
Use of a continuous catalyst regeneration type reformer for the aromax(r) catalyst process Aug 17, 2022 Issued
Array ( [id] => 20007261 [patent_doc_number] => 20250145483 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-08 [patent_title] => REACTION SYSTEM FOR PREPARING SODA ASH AND REACTION METHOD [patent_app_type] => utility [patent_app_number] => 18/717873 [patent_app_country] => US [patent_app_date] => 2022-07-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1878 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [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] => 18717873 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/717873
Reaction system for preparing soda ash Jul 27, 2022 Issued
Array ( [id] => 18941265 [patent_doc_number] => 20240036404 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-01 [patent_title] => SYSTEM AND METHOD FOR METAMATERIAL ARRAY-BASED FIELD-SHAPING [patent_app_type] => utility [patent_app_number] => 17/875959 [patent_app_country] => US [patent_app_date] => 2022-07-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8412 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 140 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17875959 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/875959
System and method for metamaterial array-based field-shaping Jul 27, 2022 Issued
Array ( [id] => 18752885 [patent_doc_number] => 20230356167 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-09 [patent_title] => FLUIDIZED BED REACTORS FOR POST-PROCESSING POWDERED CARBON [patent_app_type] => utility [patent_app_number] => 17/875173 [patent_app_country] => US [patent_app_date] => 2022-07-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13928 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [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] => 17875173 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/875173
Fluidized bed reactors for post-processing powdered carbon Jul 26, 2022 Issued
Array ( [id] => 18195890 [patent_doc_number] => 20230049409 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-02-16 [patent_title] => PROCESS AND INSTALLATION FOR THE DESTRUCTION OF RADIOACTIVE SODIUM [patent_app_type] => utility [patent_app_number] => 17/870784 [patent_app_country] => US [patent_app_date] => 2022-07-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6883 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 90 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17870784 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/870784
PROCESS AND INSTALLATION FOR THE DESTRUCTION OF RADIOACTIVE SODIUM Jul 20, 2022 Pending
Array ( [id] => 20507937 [patent_doc_number] => 12542219 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-02-03 [patent_title] => Process and installation for the destruction of radioactive sodium [patent_app_type] => utility [patent_app_number] => 17/870792 [patent_app_country] => US [patent_app_date] => 2022-07-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2163 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 135 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17870792 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/870792
Process and installation for the destruction of radioactive sodium Jul 20, 2022 Issued
Array ( [id] => 19666445 [patent_doc_number] => 12179167 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-12-31 [patent_title] => Structured packing for gas phase reactor [patent_app_type] => utility [patent_app_number] => 17/863398 [patent_app_country] => US [patent_app_date] => 2022-07-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 24 [patent_no_of_words] => 10878 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 166 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17863398 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/863398
Structured packing for gas phase reactor Jul 12, 2022 Issued
Array ( [id] => 20202228 [patent_doc_number] => 12405004 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-09-02 [patent_title] => Reactor apparatus [patent_app_type] => utility [patent_app_number] => 17/854690 [patent_app_country] => US [patent_app_date] => 2022-06-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 12 [patent_no_of_words] => 1136 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 215 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17854690 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/854690
Reactor apparatus Jun 29, 2022 Issued
Array ( [id] => 18142695 [patent_doc_number] => 20230016539 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-01-19 [patent_title] => TREATMENT OF PLASTIC-DERIVED OIL [patent_app_type] => utility [patent_app_number] => 17/851293 [patent_app_country] => US [patent_app_date] => 2022-06-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13347 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -27 [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] => 17851293 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/851293
TREATMENT OF PLASTIC-DERIVED OIL Jun 27, 2022 Pending
Array ( [id] => 20864557 [patent_doc_number] => 12691429 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-07-28 [patent_title] => Fluidized bed reactor and method for recovering active metal of lithium secondary battery utilizing same [patent_app_type] => utility [patent_app_number] => 17/849974 [patent_app_country] => US [patent_app_date] => 2022-06-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 0 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 236 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17849974 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/849974
FLUIDIZED BED REACTOR AND METHOD FOR RECOVERING ACTIVE METAL OF LITHIUM SECONDARY BATTERY UTILIZING SAME Jun 26, 2022 Pending
Array ( [id] => 18094243 [patent_doc_number] => 20220412584 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-12-29 [patent_title] => MULTI-FILTRATION AIR PURIFICATION SYSTEM [patent_app_type] => utility [patent_app_number] => 17/850901 [patent_app_country] => US [patent_app_date] => 2022-06-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6371 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -20 [patent_words_short_claim] => 38 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17850901 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/850901
MULTI-FILTRATION AIR PURIFICATION SYSTEM Jun 26, 2022 Pending
Array ( [id] => 20385665 [patent_doc_number] => 12485376 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-02 [patent_title] => Exhaust fan for preventing air pollution [patent_app_type] => utility [patent_app_number] => 17/846622 [patent_app_country] => US [patent_app_date] => 2022-06-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 20 [patent_figures_cnt] => 20 [patent_no_of_words] => 3359 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 180 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17846622 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/846622
Exhaust fan for preventing air pollution Jun 21, 2022 Issued
Array ( [id] => 20157305 [patent_doc_number] => 12383906 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-08-12 [patent_title] => Device and method for detection of pathogens [patent_app_type] => utility [patent_app_number] => 17/838807 [patent_app_country] => US [patent_app_date] => 2022-06-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 21 [patent_figures_cnt] => 26 [patent_no_of_words] => 1108 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 94 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17838807 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/838807
Device and method for detection of pathogens Jun 12, 2022 Issued
Array ( [id] => 18294601 [patent_doc_number] => 20230104287 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-04-06 [patent_title] => OZONE GENERATING ELECTRODE, METHOD OF MANUFACTURING SAME, AND METHOD OF PRODUCING OZONE USING SAME [patent_app_type] => utility [patent_app_number] => 17/834213 [patent_app_country] => US [patent_app_date] => 2022-06-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5283 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 38 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17834213 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/834213
Ozone generating electrode, method of manufacturing same, and method of producing ozone using same Jun 6, 2022 Issued
Array ( [id] => 20127980 [patent_doc_number] => 12370280 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-07-29 [patent_title] => Ultraviolet cleaning of carriers in a drive-up banking system [patent_app_type] => utility [patent_app_number] => 17/832213 [patent_app_country] => US [patent_app_date] => 2022-06-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 22 [patent_figures_cnt] => 32 [patent_no_of_words] => 3595 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 118 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17832213 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/832213
Ultraviolet cleaning of carriers in a drive-up banking system Jun 2, 2022 Issued
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