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] => 20663932 [patent_doc_number] => 12605686 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-04-21 [patent_title] => Direct electrical heating of process heater tubes using galvanic isolation techniques [patent_app_type] => utility [patent_app_number] => 19/279203 [patent_app_country] => US [patent_app_date] => 2025-07-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 18 [patent_figures_cnt] => 18 [patent_no_of_words] => 12325 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 158 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19279203 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/279203
Direct electrical heating of process heater tubes using galvanic isolation techniques Jul 23, 2025 Issued
Array ( [id] => 20607371 [patent_doc_number] => 12582952 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-03-24 [patent_title] => Three-dimensionally printed lattice structure for thermal energy generation [patent_app_type] => utility [patent_app_number] => 19/242313 [patent_app_country] => US [patent_app_date] => 2025-06-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 1078 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 81 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19242313 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/242313
Three-dimensionally printed lattice structure for thermal energy generation Jun 17, 2025 Issued
Array ( [id] => 20120810 [patent_doc_number] => 20250235841 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-07-24 [patent_title] => DIRECT ELECTRICAL HEATING OF PROCESS HEATER TUBES USING GALVANIC ISOLATION TECHNIQUES [patent_app_type] => utility [patent_app_number] => 19/177018 [patent_app_country] => US [patent_app_date] => 2025-04-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12325 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -23 [patent_words_short_claim] => 210 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19177018 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/177018
Direct electrical heating of process heater tubes using galvanic isolation techniques Apr 10, 2025 Issued
Array ( [id] => 20749532 [patent_doc_number] => 20260151750 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-06-04 [patent_title] => HIGH FREQUENCY DIRECT ELECTRICAL HEATING [patent_app_type] => utility [patent_app_number] => 18/975462 [patent_app_country] => US [patent_app_date] => 2024-12-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 16195 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 77 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18975462 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/975462
HIGH FREQUENCY DIRECT ELECTRICAL HEATING Dec 9, 2024 Pending
Array ( [id] => 20278139 [patent_doc_number] => 20250303381 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-10-02 [patent_title] => DIRECT ELECTRICAL HEATING OF REACTIVE SYSTEMS [patent_app_type] => utility [patent_app_number] => 18/909552 [patent_app_country] => US [patent_app_date] => 2024-10-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2572 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18909552 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/909552
DIRECT ELECTRICAL HEATING OF REACTIVE SYSTEMS Oct 7, 2024 Abandoned
Array ( [id] => 20107258 [patent_doc_number] => 12357957 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-07-15 [patent_title] => System and method for a three-dimensionally printed lattice structure for heating gas in a non-linear path [patent_app_type] => utility [patent_app_number] => 18/827074 [patent_app_country] => US [patent_app_date] => 2024-09-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 1078 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 111 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18827074 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/827074
System and method for a three-dimensionally printed lattice structure for heating gas in a non-linear path Sep 5, 2024 Issued
Array ( [id] => 19599992 [patent_doc_number] => 20240390872 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-11-28 [patent_title] => SYSTEMS AND METHODS FOR PYROLYSIS REACTIONS [patent_app_type] => utility [patent_app_number] => 18/790467 [patent_app_country] => US [patent_app_date] => 2024-07-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13678 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 147 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18790467 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/790467
SYSTEMS AND METHODS FOR PYROLYSIS REACTIONS Jul 30, 2024 Pending
Array ( [id] => 19527972 [patent_doc_number] => 20240351874 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-24 [patent_title] => SYSTEMS AND METHODS FOR PRODUCTION AND SEPARATION OF HYDROGEN AND CARBON DIOXIDE [patent_app_type] => utility [patent_app_number] => 18/762336 [patent_app_country] => US [patent_app_date] => 2024-07-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14946 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -36 [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] => 18762336 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/762336
Systems and methods for production and separation of hydrogen and carbon dioxide Jul 1, 2024 Issued
Array ( [id] => 19510648 [patent_doc_number] => 20240342334 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-17 [patent_title] => AROMA GENERATOR [patent_app_type] => utility [patent_app_number] => 18/754539 [patent_app_country] => US [patent_app_date] => 2024-06-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7006 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 106 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18754539 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/754539
AROMA GENERATOR Jun 25, 2024 Pending
Array ( [id] => 20881576 [patent_doc_number] => 12697598 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-08-04 [patent_title] => Apparatus and methods for synthesizing biopolymers [patent_app_type] => utility [patent_app_number] => 18/732594 [patent_app_country] => US [patent_app_date] => 2024-06-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 21 [patent_figures_cnt] => 53 [patent_no_of_words] => 3284 [patent_no_of_claims] => 22 [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] => 18732594 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/732594
APPARATUS AND METHODS FOR SYNTHESIZING BIOPOLYMERS Jun 2, 2024 Pending
Array ( [id] => 20377986 [patent_doc_number] => 20250360479 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-11-27 [patent_title] => CONDUIT ASSEMBLIES FOR A HEAT AND MASS TRANSFER SYSTEM [patent_app_type] => utility [patent_app_number] => 18/671334 [patent_app_country] => US [patent_app_date] => 2024-05-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2126 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 119 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18671334 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/671334
CONDUIT ASSEMBLIES FOR A HEAT AND MASS TRANSFER SYSTEM May 21, 2024 Pending
Array ( [id] => 19361021 [patent_doc_number] => 20240263055 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-08 [patent_title] => Two Stage Methods for Processing Adhesives and Related Compositions [patent_app_type] => utility [patent_app_number] => 18/634544 [patent_app_country] => US [patent_app_date] => 2024-04-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14919 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 61 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18634544 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/634544
Two stage methods for processing adhesives and related compositions Apr 11, 2024 Issued
Array ( [id] => 20802749 [patent_doc_number] => 12667637 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-06-30 [patent_title] => Door latch, lock and open mechanism for medical device treatment system [patent_app_type] => utility [patent_app_number] => 18/631411 [patent_app_country] => US [patent_app_date] => 2024-04-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 9 [patent_no_of_words] => 4854 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 295 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18631411 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/631411
Door latch, lock and open mechanism for medical device treatment system Apr 9, 2024 Issued
Array ( [id] => 19360655 [patent_doc_number] => 20240262689 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-08 [patent_title] => Apparatus and Method for Generating Nitric Oxide in Controlled and Accurate Amounts [patent_app_type] => utility [patent_app_number] => 18/621598 [patent_app_country] => US [patent_app_date] => 2024-03-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9689 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -23 [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] => 18621598 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/621598
Apparatus and method for generating nitric oxide in controlled and accurate amounts Mar 28, 2024 Issued
Array ( [id] => 19490860 [patent_doc_number] => 12109546 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-10-08 [patent_title] => System and method for heating gas in a continuous focused path within an electric heating unit [patent_app_type] => utility [patent_app_number] => 18/615012 [patent_app_country] => US [patent_app_date] => 2024-03-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 6021 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 109 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18615012 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/615012
System and method for heating gas in a continuous focused path within an electric heating unit Mar 24, 2024 Issued
Array ( [id] => 19768552 [patent_doc_number] => 20250049978 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-13 [patent_title] => Articles Formed of Pulp Base Materials With Modulated Scent Release [patent_app_type] => utility [patent_app_number] => 18/610232 [patent_app_country] => US [patent_app_date] => 2024-03-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 16119 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [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] => 18610232 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/610232
Articles Formed of Pulp Base Materials With Modulated Scent Release Mar 18, 2024 Abandoned
Array ( [id] => 19389690 [patent_doc_number] => 20240279560 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-22 [patent_title] => SYSTEM AND METHOD FOR DESULFURIZATION OF HYDROCARBON FUELS [patent_app_type] => utility [patent_app_number] => 18/587678 [patent_app_country] => US [patent_app_date] => 2024-02-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5834 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 18587678 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/587678
SYSTEM AND METHOD FOR DESULFURIZATION OF HYDROCARBON FUELS Feb 25, 2024 Pending
Array ( [id] => 19457017 [patent_doc_number] => 12097489 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-09-24 [patent_title] => Expanded bed direct-contact system and heat exchanger and chemical reactor using the same [patent_app_type] => utility [patent_app_number] => 18/585585 [patent_app_country] => US [patent_app_date] => 2024-02-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 8 [patent_no_of_words] => 4369 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [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] => 18585585 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/585585
Expanded bed direct-contact system and heat exchanger and chemical reactor using the same Feb 22, 2024 Issued
Array ( [id] => 20493627 [patent_doc_number] => 12535494 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-01-27 [patent_title] => Diluent preparation module [patent_app_type] => utility [patent_app_number] => 18/584136 [patent_app_country] => US [patent_app_date] => 2024-02-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 17 [patent_no_of_words] => 6876 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 41 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18584136 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/584136
Diluent preparation module Feb 21, 2024 Issued
Array ( [id] => 19186685 [patent_doc_number] => 20240165598 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-23 [patent_title] => Photocatalytic Reactor Cell [patent_app_type] => utility [patent_app_number] => 18/425124 [patent_app_country] => US [patent_app_date] => 2024-01-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4880 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18425124 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/425124
Photocatalytic Reactor Cell Jan 28, 2024 Abandoned
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