Search

Sheela C. Chawan

Examiner (ID: 17138, Phone: (571)272-7446 , Office: P/2669 )

Most Active Art Unit
2669
Art Unit(s)
2625, 2623, 2721, 2669, 2624, 2621
Total Applications
1677
Issued Applications
1462
Pending Applications
84
Abandoned Applications
161

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 19700404 [patent_doc_number] => 12194406 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-01-14 [patent_title] => Device for purifying a process fluid and dehumidifying plant including such a device [patent_app_type] => utility [patent_app_number] => 17/414479 [patent_app_country] => US [patent_app_date] => 2019-12-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 11 [patent_no_of_words] => 2402 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 198 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17414479 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/414479
Device for purifying a process fluid and dehumidifying plant including such a device Dec 12, 2019 Issued
Array ( [id] => 17355774 [patent_doc_number] => 20220016570 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-01-20 [patent_title] => SELECTIVELY PERMEABLE POLYMERIC MEMBRANE [patent_app_type] => utility [patent_app_number] => 17/414812 [patent_app_country] => US [patent_app_date] => 2019-12-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6844 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 22 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17414812 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/414812
SELECTIVELY PERMEABLE POLYMERIC MEMBRANE Dec 11, 2019 Abandoned
Array ( [id] => 19505995 [patent_doc_number] => 12117411 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-10-15 [patent_title] => Methods for analyzing a gas mixture and gas sensor [patent_app_type] => utility [patent_app_number] => 17/312270 [patent_app_country] => US [patent_app_date] => 2019-12-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 3587 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 337 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17312270 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/312270
Methods for analyzing a gas mixture and gas sensor Dec 5, 2019 Issued
Array ( [id] => 17367477 [patent_doc_number] => 20220022529 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-01-27 [patent_title] => Paper Sheet and Method of Making It [patent_app_type] => utility [patent_app_number] => 17/299902 [patent_app_country] => US [patent_app_date] => 2019-12-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5748 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 10 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17299902 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/299902
Paper Sheet and Method of Making It Dec 5, 2019 Pending
Array ( [id] => 17442320 [patent_doc_number] => 20220062825 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-03-03 [patent_title] => SEPARATION MEMBRANE MODULE AND LIQUID TREATMENT SYSTEM INCLUDING THE SAME [patent_app_type] => utility [patent_app_number] => 17/424776 [patent_app_country] => US [patent_app_date] => 2019-12-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8136 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [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] => 17424776 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/424776
Separation membrane module and liquid treatment system including the same Dec 3, 2019 Issued
Array ( [id] => 17342605 [patent_doc_number] => 20220008936 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-01-13 [patent_title] => ELECTRONIC PURIFICATION OF AIR IN MINES [patent_app_type] => utility [patent_app_number] => 17/299506 [patent_app_country] => US [patent_app_date] => 2019-12-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1795 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 70 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17299506 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/299506
ELECTRONIC PURIFICATION OF AIR IN MINES Dec 3, 2019 Abandoned
Array ( [id] => 17355764 [patent_doc_number] => 20220016560 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-01-20 [patent_title] => AIR PURIFIER [patent_app_type] => utility [patent_app_number] => 17/299595 [patent_app_country] => US [patent_app_date] => 2019-12-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1695 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 63 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17299595 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/299595
AIR PURIFIER Dec 3, 2019 Pending
Array ( [id] => 17355847 [patent_doc_number] => 20220016643 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-01-20 [patent_title] => ELECTROSTATIC FILTER MODULE FOR AIR CLEANER, AND AIR CLEANER [patent_app_type] => utility [patent_app_number] => 17/294434 [patent_app_country] => US [patent_app_date] => 2019-11-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6675 [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] => 17294434 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/294434
ELECTROSTATIC FILTER MODULE FOR AIR CLEANER, AND AIR CLEANER Nov 27, 2019 Pending
Array ( [id] => 17481014 [patent_doc_number] => 20220088518 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-03-24 [patent_title] => IMPROVED LAYERED FILTER FRAME [patent_app_type] => utility [patent_app_number] => 17/296780 [patent_app_country] => US [patent_app_date] => 2019-11-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6541 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 213 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17296780 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/296780
Layered filter frame Nov 20, 2019 Issued
Array ( [id] => 19716418 [patent_doc_number] => 12201936 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-01-21 [patent_title] => Gas recovery method [patent_app_type] => utility [patent_app_number] => 17/295274 [patent_app_country] => US [patent_app_date] => 2019-11-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 8 [patent_no_of_words] => 8110 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 129 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17295274 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/295274
Gas recovery method Nov 19, 2019 Issued
Array ( [id] => 16436079 [patent_doc_number] => 20200353404 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-11-12 [patent_title] => METHOD FOR REGENERATING AMMONIA WATER AFTER CAPTURING CARBON DIOXIDE WITH AMMONIA WATER AND METHOD FOR CAPTURING CARBON DIOXIDE WITH AMMONIA WATER [patent_app_type] => utility [patent_app_number] => 16/676797 [patent_app_country] => US [patent_app_date] => 2019-11-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6529 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -21 [patent_words_short_claim] => 279 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16676797 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/676797
Method for regenerating ammonia water after capturing carbon dioxide with ammonia water and method for capturing carbon dioxide with ammonia water Nov 6, 2019 Issued
Array ( [id] => 17564099 [patent_doc_number] => 20220128248 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-04-28 [patent_title] => HUMIDIFIER [patent_app_type] => utility [patent_app_number] => 17/434377 [patent_app_country] => US [patent_app_date] => 2019-10-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2603 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 136 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17434377 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/434377
Humidifier Oct 30, 2019 Issued
Array ( [id] => 15829431 [patent_doc_number] => 20200129997 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-04-30 [patent_title] => OLFACTORY SIMULATION SYSTEM FOR HEAD-MOUNTED DISPLAYS [patent_app_type] => utility [patent_app_number] => 16/670572 [patent_app_country] => US [patent_app_date] => 2019-10-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4135 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -23 [patent_words_short_claim] => 80 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16670572 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/670572
OLFACTORY SIMULATION SYSTEM FOR HEAD-MOUNTED DISPLAYS Oct 30, 2019 Abandoned
Array ( [id] => 17329428 [patent_doc_number] => 11219872 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-01-11 [patent_title] => System and method for stably infusing gas into liquid, and for delivering the stabilized gas-infused liquid into another liquid [patent_app_type] => utility [patent_app_number] => 16/665404 [patent_app_country] => US [patent_app_date] => 2019-10-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 10890 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 324 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16665404 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/665404
System and method for stably infusing gas into liquid, and for delivering the stabilized gas-infused liquid into another liquid Oct 27, 2019 Issued
Array ( [id] => 19883299 [patent_doc_number] => 12268985 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-04-08 [patent_title] => Process for treating a gaseous effluent from pyrolytic decomposition of a polymer [patent_app_type] => utility [patent_app_number] => 17/286168 [patent_app_country] => US [patent_app_date] => 2019-10-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 10380 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 196 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17286168 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/286168
Process for treating a gaseous effluent from pyrolytic decomposition of a polymer Oct 17, 2019 Issued
Array ( [id] => 19730371 [patent_doc_number] => 12208358 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-01-28 [patent_title] => Replenishing liquid material to a membrane within a multi-module system [patent_app_type] => utility [patent_app_number] => 17/286228 [patent_app_country] => US [patent_app_date] => 2019-10-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 7358 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 175 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17286228 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/286228
Replenishing liquid material to a membrane within a multi-module system Oct 17, 2019 Issued
Array ( [id] => 19930614 [patent_doc_number] => 12303807 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-05-20 [patent_title] => Particle filter with ultrasound device [patent_app_type] => utility [patent_app_number] => 17/285895 [patent_app_country] => US [patent_app_date] => 2019-10-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 30 [patent_figures_cnt] => 39 [patent_no_of_words] => 18060 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 543 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17285895 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/285895
Particle filter with ultrasound device Oct 13, 2019 Issued
Array ( [id] => 17291298 [patent_doc_number] => 20210387137 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-12-16 [patent_title] => METHOD AND DEVICE FOR MANAGING A WASTE GAS TREATMENT DEVICE [patent_app_type] => utility [patent_app_number] => 17/282431 [patent_app_country] => US [patent_app_date] => 2019-10-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7521 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 180 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17282431 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/282431
Method and device for managing a waste gas treatment device Oct 10, 2019 Issued
Array ( [id] => 15766603 [patent_doc_number] => 20200114319 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-04-16 [patent_title] => Dual-Action Water Aerator [patent_app_type] => utility [patent_app_number] => 16/598842 [patent_app_country] => US [patent_app_date] => 2019-10-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5188 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 97 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16598842 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/598842
Dual-action water aerator Oct 9, 2019 Issued
Array ( [id] => 17399204 [patent_doc_number] => 20220041294 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-02-10 [patent_title] => VEHICLE PROVIDED, AT THE INTAKE, WITH AN AIR FILTER AND CORRESPONDING AIR FILTER [patent_app_type] => utility [patent_app_number] => 17/278778 [patent_app_country] => US [patent_app_date] => 2019-10-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3071 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 177 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17278778 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/278778
VEHICLE PROVIDED, AT THE INTAKE, WITH AN AIR FILTER AND CORRESPONDING AIR FILTER Oct 8, 2019 Pending
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