Search

Lessanework T. Seifu

Examiner (ID: 6076, Phone: (571)270-3153 , Office: P/1774 )

Most Active Art Unit
1774
Art Unit(s)
1774, 1709, 1797
Total Applications
1378
Issued Applications
1086
Pending Applications
91
Abandoned Applications
234

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20348913 [patent_doc_number] => 20250345765 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-11-13 [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] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12325 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 158 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [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 Pending
Array ( [id] => 20287512 [patent_doc_number] => 20250312755 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-10-09 [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] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1078 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 53 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [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 Pending
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] => 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] => 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] => 19682839 [patent_doc_number] => 20250001384 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-02 [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] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7102 [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] => 18732594 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/732594
APPARATUS AND METHODS FOR SYNTHESIZING BIOPOLYMERS Jun 2, 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 Pending
Array ( [id] => 19343743 [patent_doc_number] => 20240252706 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-01 [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] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10982 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 170 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [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 Pending
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 Pending
Array ( [id] => 19233947 [patent_doc_number] => 20240191139 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-06-13 [patent_title] => SYSTEMS AND METHODS FOR THE MANUFACTURE OF HIGH MELTING HYDROCARBONS FROM COAL [patent_app_type] => utility [patent_app_number] => 18/587379 [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] => 4626 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 18587379 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/587379
SYSTEMS AND METHODS FOR THE MANUFACTURE OF HIGH MELTING HYDROCARBONS FROM COAL Feb 25, 2024 Pending
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 Pending
Array ( [id] => 19127430 [patent_doc_number] => 20240132783 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-25 [patent_title] => INTEGRATED SYSTEM OF BIOMASS TO RENEWABLE NATURAL GAS TO METHANOL, AND OTHER VALUE ADDED PRODUCTS [patent_app_type] => utility [patent_app_number] => 18/400796 [patent_app_country] => US [patent_app_date] => 2023-12-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4377 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 55 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18400796 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/400796
INTEGRATED SYSTEM OF BIOMASS TO RENEWABLE NATURAL GAS TO METHANOL, AND OTHER VALUE ADDED PRODUCTS Dec 28, 2023 Pending
Array ( [id] => 19389139 [patent_doc_number] => 20240279009 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-22 [patent_title] => DEVICE FOR FILLING A CONTAINER WITH PARTICULATE MATERIAL [patent_app_type] => utility [patent_app_number] => 18/390999 [patent_app_country] => US [patent_app_date] => 2023-12-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15741 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 44 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18390999 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/390999
DEVICE FOR FILLING A CONTAINER WITH PARTICULATE MATERIAL Dec 19, 2023 Pending
Array ( [id] => 19096791 [patent_doc_number] => 20240116018 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-11 [patent_title] => METHOD OF MANUFACTURING BIO-DIESEL AND REACTOR [patent_app_type] => utility [patent_app_number] => 18/545409 [patent_app_country] => US [patent_app_date] => 2023-12-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11659 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 208 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18545409 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/545409
Method of manufacturing bio-diesel and reactor Dec 18, 2023 Issued
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