Search

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 numberTitle of the applicationFiling DateStatus
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
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