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] => 20157278 [patent_doc_number] => 12383879 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-08-12 [patent_title] => Semiconductor phosphide injection synthesis system and control method [patent_app_type] => utility [patent_app_number] => 17/797081 [patent_app_country] => US [patent_app_date] => 2021-07-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 0 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 159 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17797081 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/797081
Semiconductor phosphide injection synthesis system and control method Jul 4, 2021 Issued
Array ( [id] => 17185847 [patent_doc_number] => 20210332732 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-10-28 [patent_title] => CATALYTIC COMPOSITE [patent_app_type] => utility [patent_app_number] => 17/366499 [patent_app_country] => US [patent_app_date] => 2021-07-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9055 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 15 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17366499 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/366499
Catalytic composite Jul 1, 2021 Issued
Array ( [id] => 19353959 [patent_doc_number] => 12054388 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-08-06 [patent_title] => Systems and methods for production and separation of hydrogen and carbon dioxide [patent_app_type] => utility [patent_app_number] => 17/365611 [patent_app_country] => US [patent_app_date] => 2021-07-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 14962 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 252 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17365611 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/365611
Systems and methods for production and separation of hydrogen and carbon dioxide Jun 30, 2021 Issued
Array ( [id] => 19650733 [patent_doc_number] => 12172498 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-12-24 [patent_title] => Vehicle oxygen generating system [patent_app_type] => utility [patent_app_number] => 17/362808 [patent_app_country] => US [patent_app_date] => 2021-06-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 22 [patent_no_of_words] => 6945 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 104 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17362808 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/362808
Vehicle oxygen generating system Jun 28, 2021 Issued
Array ( [id] => 20402813 [patent_doc_number] => 12492785 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-09 [patent_title] => Compressed gas tank and method for operating a compressed gas tank [patent_app_type] => utility [patent_app_number] => 18/003464 [patent_app_country] => US [patent_app_date] => 2021-06-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 0 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 131 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18003464 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/003464
Compressed gas tank and method for operating a compressed gas tank Jun 27, 2021 Issued
Array ( [id] => 18246009 [patent_doc_number] => 11602572 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-03-14 [patent_title] => Systems and methods for using solid high-level disinfection chemistries to produce disinfectant solutions [patent_app_type] => utility [patent_app_number] => 17/360460 [patent_app_country] => US [patent_app_date] => 2021-06-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 8434 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 4 [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] => 17360460 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/360460
Systems and methods for using solid high-level disinfection chemistries to produce disinfectant solutions Jun 27, 2021 Issued
Array ( [id] => 17313316 [patent_doc_number] => 20210402364 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-12-30 [patent_title] => BIDIRECTIONAL FLOW REACTION SYSTEM FOR SOLID PHASE SYNTHESIS [patent_app_type] => utility [patent_app_number] => 17/359021 [patent_app_country] => US [patent_app_date] => 2021-06-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9351 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -25 [patent_words_short_claim] => 107 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17359021 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/359021
Bidirectional flow reaction system for solid phase synthesis Jun 24, 2021 Issued
Array ( [id] => 18627108 [patent_doc_number] => 20230285920 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-14 [patent_title] => METHOD AND DEVICE FOR RECYCLING WASTE MATERIALS CONTAINING VALUABLE METALS [patent_app_type] => utility [patent_app_number] => 18/014027 [patent_app_country] => US [patent_app_date] => 2021-06-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9901 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 83 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18014027 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/014027
METHOD AND DEVICE FOR RECYCLING WASTE MATERIALS CONTAINING VALUABLE METALS Jun 23, 2021 Pending
Array ( [id] => 19564651 [patent_doc_number] => 12139412 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-11-12 [patent_title] => Halogen generator [patent_app_type] => utility [patent_app_number] => 17/356744 [patent_app_country] => US [patent_app_date] => 2021-06-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 3239 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 56 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17356744 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/356744
Halogen generator Jun 23, 2021 Issued
Array ( [id] => 18627108 [patent_doc_number] => 20230285920 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-14 [patent_title] => METHOD AND DEVICE FOR RECYCLING WASTE MATERIALS CONTAINING VALUABLE METALS [patent_app_type] => utility [patent_app_number] => 18/014027 [patent_app_country] => US [patent_app_date] => 2021-06-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9901 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 83 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18014027 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/014027
METHOD AND DEVICE FOR RECYCLING WASTE MATERIALS CONTAINING VALUABLE METALS Jun 23, 2021 Pending
Array ( [id] => 18404896 [patent_doc_number] => 20230166247 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-06-01 [patent_title] => A STRUCTURED CATALYST [patent_app_type] => utility [patent_app_number] => 17/997286 [patent_app_country] => US [patent_app_date] => 2021-06-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7849 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -20 [patent_words_short_claim] => 223 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17997286 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/997286
Structured catalyst Jun 23, 2021 Issued
Array ( [id] => 18656526 [patent_doc_number] => 20230302427 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-28 [patent_title] => PRESSED SILICON CARBIDE (SIC) MULTILAYER FLUIDIC MODULES [patent_app_type] => utility [patent_app_number] => 18/020783 [patent_app_country] => US [patent_app_date] => 2021-06-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4848 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 18020783 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/020783
PRESSED SILICON CARBIDE (SIC) MULTILAYER FLUIDIC MODULES Jun 23, 2021 Pending
Array ( [id] => 17297975 [patent_doc_number] => 20210393814 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-12-23 [patent_title] => Wearable Sanitization Device [patent_app_type] => utility [patent_app_number] => 17/355012 [patent_app_country] => US [patent_app_date] => 2021-06-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2401 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 17355012 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/355012
Wearable Sanitization Device Jun 21, 2021 Abandoned
Array ( [id] => 18523361 [patent_doc_number] => 20230234016 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-07-27 [patent_title] => DEVICE AND PROCESS FOR MASS PRODUCTION OF PARTICULATE MATERIALS [patent_app_type] => utility [patent_app_number] => 18/001300 [patent_app_country] => US [patent_app_date] => 2021-06-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5229 [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] => 18001300 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/001300
DEVICE AND PROCESS FOR MASS PRODUCTION OF PARTICULATE MATERIALS Jun 14, 2021 Pending
Array ( [id] => 19716240 [patent_doc_number] => 12201756 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-01-21 [patent_title] => Low temperature micro plasma ozone generating device [patent_app_type] => utility [patent_app_number] => 17/619520 [patent_app_country] => US [patent_app_date] => 2021-06-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 12 [patent_no_of_words] => 4584 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 231 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17619520 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/619520
Low temperature micro plasma ozone generating device Jun 14, 2021 Issued
Array ( [id] => 17291041 [patent_doc_number] => 20210386880 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-12-16 [patent_title] => MASS DECONTAMINATION SYSTEM [patent_app_type] => utility [patent_app_number] => 17/344215 [patent_app_country] => US [patent_app_date] => 2021-06-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4698 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 17344215 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/344215
MASS DECONTAMINATION SYSTEM Jun 9, 2021 Abandoned
Array ( [id] => 17292108 [patent_doc_number] => 20210387947 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-12-16 [patent_title] => CONTINUOUS PHOTOCHEMICAL PRODUCTION OF HIGH PURITY LINEAR MERCAPTAN AND SULFIDE COMPOSITIONS [patent_app_type] => utility [patent_app_number] => 17/342737 [patent_app_country] => US [patent_app_date] => 2021-06-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10773 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 186 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17342737 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/342737
Continuous photochemical production of high purity linear mercaptan and sulfide compositions Jun 8, 2021 Issued
Array ( [id] => 17109193 [patent_doc_number] => 20210289790 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-09-23 [patent_title] => BIOACTIVE MATERIAL [patent_app_type] => utility [patent_app_number] => 17/339751 [patent_app_country] => US [patent_app_date] => 2021-06-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11501 [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] => 17339751 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/339751
BIOACTIVE MATERIAL Jun 3, 2021 Pending
Array ( [id] => 19622980 [patent_doc_number] => 12161772 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-12-10 [patent_title] => Fluid disinfectant dispersant system [patent_app_type] => utility [patent_app_number] => 17/333923 [patent_app_country] => US [patent_app_date] => 2021-05-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 10 [patent_no_of_words] => 5373 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 223 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17333923 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/333923
Fluid disinfectant dispersant system May 27, 2021 Issued
Array ( [id] => 17952694 [patent_doc_number] => 11478772 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-10-25 [patent_title] => Polymerisation unit and polymerisation process [patent_app_type] => utility [patent_app_number] => 17/303358 [patent_app_country] => US [patent_app_date] => 2021-05-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 13091 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 254 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17303358 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/303358
Polymerisation unit and polymerisation process May 26, 2021 Issued
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