
Duane Smith
Supervisory Patent Examiner (ID: 15939, Phone: (571)272-1166 , Office: P/1776 )
| Most Active Art Unit | 1724 |
| Art Unit(s) | 1305, 1700, 1759, 3621, 1797, 1776, 1724, 1737 |
| Total Applications | 1355 |
| Issued Applications | 1012 |
| Pending Applications | 134 |
| Abandoned Applications | 216 |
Applications
| Application number | Title of the application | Filing Date | Status |
|---|---|---|---|
Array
(
[id] => 20371503
[patent_doc_number] => 12478920
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2025-11-25
[patent_title] => Storage and delivery vessels and related methods
[patent_app_type] => utility
[patent_app_number] => 17/945849
[patent_app_country] => US
[patent_app_date] => 2022-09-15
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 8
[patent_figures_cnt] => 9
[patent_no_of_words] => 3953
[patent_no_of_claims] => 13
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 113
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17945849
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/945849 | Storage and delivery vessels and related methods | Sep 14, 2022 | Issued |
Array
(
[id] => 18159634
[patent_doc_number] => 20230026226
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2023-01-26
[patent_title] => GAS SEPARATION METHOD AND ZEOLITE MEMBRANE
[patent_app_type] => utility
[patent_app_number] => 17/931925
[patent_app_country] => US
[patent_app_date] => 2022-09-14
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 10152
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -9
[patent_words_short_claim] => 161
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17931925
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/931925 | Gas separation method and zeolite membrane | Sep 13, 2022 | Issued |
Array
(
[id] => 20371489
[patent_doc_number] => 12478906
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2025-11-25
[patent_title] => Filter assembly for packaging systems
[patent_app_type] => utility
[patent_app_number] => 17/941555
[patent_app_country] => US
[patent_app_date] => 2022-09-09
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 9
[patent_figures_cnt] => 12
[patent_no_of_words] => 1152
[patent_no_of_claims] => 20
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 161
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17941555
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/941555 | Filter assembly for packaging systems | Sep 8, 2022 | Issued |
Array
(
[id] => 20686052
[patent_doc_number] => 12616176
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2026-05-05
[patent_title] => Fish tank filter
[patent_app_type] => utility
[patent_app_number] => 17/892052
[patent_app_country] => US
[patent_app_date] => 2022-08-20
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 8
[patent_figures_cnt] => 18
[patent_no_of_words] => 0
[patent_no_of_claims] => 9
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 365
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17892052
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/892052 | Fish tank filter | Aug 19, 2022 | Issued |
Array
(
[id] => 18144594
[patent_doc_number] => 20230018446
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2023-01-19
[patent_title] => AIR PURIFICATION SYSTEMS AND METHODS FOR VACUUM CLEANERS
[patent_app_type] => utility
[patent_app_number] => 17/813301
[patent_app_country] => US
[patent_app_date] => 2022-07-18
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 11682
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -18
[patent_words_short_claim] => 187
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17813301
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/813301 | AIR PURIFICATION SYSTEMS AND METHODS FOR VACUUM CLEANERS | Jul 17, 2022 | Abandoned |
Array
(
[id] => 20158532
[patent_doc_number] => 12385145
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2025-08-12
[patent_title] => Systems and methods for hydrogen recovery
[patent_app_type] => utility
[patent_app_number] => 17/864187
[patent_app_country] => US
[patent_app_date] => 2022-07-13
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 9
[patent_figures_cnt] => 9
[patent_no_of_words] => 9091
[patent_no_of_claims] => 13
[patent_no_of_ind_claims] => 1
[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] => 17864187
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/864187 | Systems and methods for hydrogen recovery | Jul 12, 2022 | Issued |
Array
(
[id] => 17944713
[patent_doc_number] => 20220331730
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2022-10-20
[patent_title] => AIR PURIFYING FILTER, APPARATUS INCLUDING THE SAME, AND METHODS OF MAKING AND USING THE SAME
[patent_app_type] => utility
[patent_app_number] => 17/810449
[patent_app_country] => US
[patent_app_date] => 2022-07-01
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 8009
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -17
[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] => 17810449
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/810449 | AIR PURIFYING FILTER, APPARATUS INCLUDING THE SAME, AND METHODS OF MAKING AND USING THE SAME | Jun 30, 2022 | Abandoned |
Array
(
[id] => 20107241
[patent_doc_number] => 12357940
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2025-07-15
[patent_title] => Vehicle carbon capture system
[patent_app_type] => utility
[patent_app_number] => 17/856360
[patent_app_country] => US
[patent_app_date] => 2022-07-01
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 13
[patent_figures_cnt] => 28
[patent_no_of_words] => 8212
[patent_no_of_claims] => 20
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 143
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17856360
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/856360 | Vehicle carbon capture system | Jun 30, 2022 | Issued |
Array
(
[id] => 18108459
[patent_doc_number] => 20230001339
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2023-01-05
[patent_title] => MASK COMPRISING REUSABLE SHELL AND FILTER INSERT
[patent_app_type] => utility
[patent_app_number] => 17/852792
[patent_app_country] => US
[patent_app_date] => 2022-06-29
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 11303
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -17
[patent_words_short_claim] => 75
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17852792
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/852792 | MASK COMPRISING REUSABLE SHELL AND FILTER INSERT | Jun 28, 2022 | Abandoned |
Array
(
[id] => 18877924
[patent_doc_number] => 20240001293
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-01-04
[patent_title] => PRODUCTION OF COMPRESSED NATURAL GAS FROM RAW BIOGAS USING GAS SEPARATION MEMBRANES INTEGRATED WITH COMPRESSOR TRAIN
[patent_app_type] => utility
[patent_app_number] => 17/853770
[patent_app_country] => US
[patent_app_date] => 2022-06-29
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 6568
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -11
[patent_words_short_claim] => 300
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17853770
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/853770 | PRODUCTION OF COMPRESSED NATURAL GAS FROM RAW BIOGAS USING GAS SEPARATION MEMBRANES INTEGRATED WITH COMPRESSOR TRAIN | Jun 28, 2022 | Abandoned |
Array
(
[id] => 18039846
[patent_doc_number] => 20220384063
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2022-12-01
[patent_title] => CONTAMINANT TRAP SYSTEM FOR A REACTOR SYSTEM
[patent_app_type] => utility
[patent_app_number] => 17/825460
[patent_app_country] => US
[patent_app_date] => 2022-05-26
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 16098
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -17
[patent_words_short_claim] => 86
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17825460
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/825460 | Contaminant trap system for a reactor system | May 25, 2022 | Issued |
Array
(
[id] => 20271036
[patent_doc_number] => 12440802
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2025-10-14
[patent_title] => Method to dry a hydrocarbon gas stream
[patent_app_type] => utility
[patent_app_number] => 17/743025
[patent_app_country] => US
[patent_app_date] => 2022-05-12
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 2
[patent_figures_cnt] => 2
[patent_no_of_words] => 0
[patent_no_of_claims] => 7
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 156
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17743025
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/743025 | Method to dry a hydrocarbon gas stream | May 11, 2022 | Issued |
Array
(
[id] => 20358079
[patent_doc_number] => 12474068
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2025-11-18
[patent_title] => Air-conditioning system
[patent_app_type] => utility
[patent_app_number] => 17/742564
[patent_app_country] => US
[patent_app_date] => 2022-05-12
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 37
[patent_figures_cnt] => 44
[patent_no_of_words] => 8864
[patent_no_of_claims] => 16
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 383
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17742564
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/742564 | Air-conditioning system | May 11, 2022 | Issued |
Array
(
[id] => 20373238
[patent_doc_number] => 12480667
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2025-11-25
[patent_title] => Air-conditioning system
[patent_app_type] => utility
[patent_app_number] => 17/742650
[patent_app_country] => US
[patent_app_date] => 2022-05-12
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 104
[patent_figures_cnt] => 117
[patent_no_of_words] => 33860
[patent_no_of_claims] => 16
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 287
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17742650
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/742650 | Air-conditioning system | May 11, 2022 | Issued |
Array
(
[id] => 19232572
[patent_doc_number] => 20240189764
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-06-13
[patent_title] => PROCESS FOR REDUCING CARBON DIOXIDE CONTENT OF GAS MIXTURE AND MEMBRANE SEPARATION ARRANGEMENT
[patent_app_type] => utility
[patent_app_number] => 18/554596
[patent_app_country] => US
[patent_app_date] => 2022-04-11
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 3380
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -10
[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] => 18554596
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/554596 | PROCESS FOR REDUCING CARBON DIOXIDE CONTENT OF GAS MIXTURE AND MEMBRANE SEPARATION ARRANGEMENT | Apr 10, 2022 | Pending |
Array
(
[id] => 19247286
[patent_doc_number] => 20240198271
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-06-20
[patent_title] => LIQUID BATH AIR FILTER
[patent_app_type] => utility
[patent_app_number] => 18/271083
[patent_app_country] => US
[patent_app_date] => 2022-01-06
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 4951
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -18
[patent_words_short_claim] => 86
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18271083
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/271083 | Liquid bath air filter | Jan 5, 2022 | Issued |
Array
(
[id] => 17519614
[patent_doc_number] => 20220105462
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2022-04-07
[patent_title] => m-PHENYLENEDIAMINE COMPOUND, POLYMER AND METHOD FOR PRODUCING THE SAME, AND GAS SEPARATION MEMBRANE, GAS SEPARATION MODULE, AND GAS SEPARATION APPARATUS USING THE POLYMER
[patent_app_type] => utility
[patent_app_number] => 17/553807
[patent_app_country] => US
[patent_app_date] => 2021-12-17
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 11960
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -14
[patent_words_short_claim] => 64
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17553807
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/553807 | m-PHENYLENEDIAMINE COMPOUND, POLYMER AND METHOD FOR PRODUCING THE SAME, AND GAS SEPARATION MEMBRANE, GAS SEPARATION MODULE, AND GAS SEPARATION APPARATUS USING THE POLYMER | Dec 16, 2021 | Abandoned |
Array
(
[id] => 18970800
[patent_doc_number] => 20240050892
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-02-15
[patent_title] => AQUEOUS ABSORPTION MEDIUM FOR REMOVAL OF ACID GASES
[patent_app_type] => utility
[patent_app_number] => 18/257001
[patent_app_country] => US
[patent_app_date] => 2021-12-14
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 4024
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -9
[patent_words_short_claim] => 141
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18257001
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/257001 | Aqueous absorption medium for removal of acid gases | Dec 13, 2021 | Issued |
Array
(
[id] => 18673540
[patent_doc_number] => 20230311040
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2023-10-05
[patent_title] => DEVICE AND METHOD FOR SEPARATING GLUE PARTICLES FROM AN AEROSOL
[patent_app_type] => utility
[patent_app_number] => 18/252504
[patent_app_country] => US
[patent_app_date] => 2021-09-30
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 3799
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -13
[patent_words_short_claim] => 94
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18252504
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/252504 | DEVICE AND METHOD FOR SEPARATING GLUE PARTICLES FROM AN AEROSOL | Sep 29, 2021 | Abandoned |
Array
(
[id] => 20528063
[patent_doc_number] => 12546494
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2026-02-10
[patent_title] => Portable air purifier
[patent_app_type] => utility
[patent_app_number] => 17/384980
[patent_app_country] => US
[patent_app_date] => 2021-07-26
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 29
[patent_figures_cnt] => 29
[patent_no_of_words] => 17851
[patent_no_of_claims] => 31
[patent_no_of_ind_claims] => 3
[patent_words_short_claim] => 233
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17384980
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/384980 | Portable air purifier | Jul 25, 2021 | Issued |