Search

Nancy N. Prasad

Examiner (ID: 11746, Phone: (571)270-3265 , Office: P/3624 )

Most Active Art Unit
3624
Art Unit(s)
3684, 3692, 3624
Total Applications
377
Issued Applications
73
Pending Applications
55
Abandoned Applications
259

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 18294856 [patent_doc_number] => 20230104542 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-04-06 [patent_title] => WASTE OIL PURIFICATION APPARATUS [patent_app_type] => utility [patent_app_number] => 17/957180 [patent_app_country] => US [patent_app_date] => 2022-09-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4383 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [patent_words_short_claim] => 391 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17957180 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/957180
Waste oil purification apparatus Sep 29, 2022 Issued
Array ( [id] => 20479570 [patent_doc_number] => 12528035 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-01-20 [patent_title] => Filter comprising rotating device [patent_app_type] => utility [patent_app_number] => 17/957117 [patent_app_country] => US [patent_app_date] => 2022-09-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 0 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 341 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17957117 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/957117
Filter comprising rotating device Sep 29, 2022 Issued
Array ( [id] => 20465627 [patent_doc_number] => 12521657 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-01-13 [patent_title] => Filter valve assembly [patent_app_type] => utility [patent_app_number] => 17/951244 [patent_app_country] => US [patent_app_date] => 2022-09-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 9 [patent_no_of_words] => 0 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 368 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17951244 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/951244
Filter valve assembly Sep 22, 2022 Issued
Array ( [id] => 19049716 [patent_doc_number] => 20240091685 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-21 [patent_title] => SYSTEM AND METHOD FOR FILTERING A FLUID [patent_app_type] => utility [patent_app_number] => 17/933931 [patent_app_country] => US [patent_app_date] => 2022-09-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4034 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 119 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17933931 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/933931
SYSTEM AND METHOD FOR FILTERING A FLUID Sep 20, 2022 Pending
Array ( [id] => 20076573 [patent_doc_number] => 12350609 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-07-08 [patent_title] => Pre-wet system having pneumatic circulation [patent_app_type] => utility [patent_app_number] => 17/946969 [patent_app_country] => US [patent_app_date] => 2022-09-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 11 [patent_no_of_words] => 0 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 273 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17946969 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/946969
Pre-wet system having pneumatic circulation Sep 15, 2022 Issued
Array ( [id] => 18566036 [patent_doc_number] => 20230256364 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-17 [patent_title] => HIGH FLOW, LOW HOLD UP FILTERS [patent_app_type] => utility [patent_app_number] => 17/931829 [patent_app_country] => US [patent_app_date] => 2022-09-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9093 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [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] => 17931829 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/931829
High flow, low hold up filters Sep 12, 2022 Issued
Array ( [id] => 18143834 [patent_doc_number] => 20230017685 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-01-19 [patent_title] => FILTER INTERLOCK WITH TABS MATING WITH A PEDESTAL OR A HOUSING [patent_app_type] => utility [patent_app_number] => 17/942528 [patent_app_country] => US [patent_app_date] => 2022-09-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7164 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [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] => 17942528 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/942528
Filter interlock with tabs mating with a pedestal or a housing Sep 11, 2022 Issued
Array ( [id] => 18110816 [patent_doc_number] => 20230003696 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-01-05 [patent_title] => QUALITY CONTROL TOOLS FOR LC-MS [patent_app_type] => utility [patent_app_number] => 17/930616 [patent_app_country] => US [patent_app_date] => 2022-09-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15683 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -25 [patent_words_short_claim] => 174 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17930616 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/930616
QUALITY CONTROL TOOLS FOR LC-MS Sep 7, 2022 Pending
Array ( [id] => 18870118 [patent_doc_number] => 11857898 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-01-02 [patent_title] => Filter arrangements for liquids and methods of use [patent_app_type] => utility [patent_app_number] => 17/939179 [patent_app_country] => US [patent_app_date] => 2022-09-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 21 [patent_no_of_words] => 10429 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 186 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17939179 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/939179
Filter arrangements for liquids and methods of use Sep 6, 2022 Issued
Array ( [id] => 18240904 [patent_doc_number] => 20230073215 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-09 [patent_title] => FILTER AND FILTER DEVICE [patent_app_type] => utility [patent_app_number] => 17/901171 [patent_app_country] => US [patent_app_date] => 2022-09-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14363 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 178 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17901171 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/901171
Filter and filter device Aug 31, 2022 Issued
Array ( [id] => 18091700 [patent_doc_number] => 20220410041 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-12-29 [patent_title] => Water Filter with Removable Sleeve [patent_app_type] => utility [patent_app_number] => 17/823048 [patent_app_country] => US [patent_app_date] => 2022-08-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4456 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 175 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17823048 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/823048
Water Filter with Removable Sleeve Aug 28, 2022 Abandoned
Array ( [id] => 19932943 [patent_doc_number] => 12306146 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-05-20 [patent_title] => Valve switching system for selectively interconnecting components of a bioprocess installation [patent_app_type] => utility [patent_app_number] => 17/896645 [patent_app_country] => US [patent_app_date] => 2022-08-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 4388 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 256 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17896645 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/896645
Valve switching system for selectively interconnecting components of a bioprocess installation Aug 25, 2022 Issued
Array ( [id] => 18266549 [patent_doc_number] => 20230087791 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-23 [patent_title] => AUTOMATED CONTROL OF HIGH-PRESSURE FILTER SYSTEMS [patent_app_type] => utility [patent_app_number] => 17/887748 [patent_app_country] => US [patent_app_date] => 2022-08-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6287 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 76 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17887748 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/887748
Automated control of high-pressure filter systems Aug 14, 2022 Issued
Array ( [id] => 19012037 [patent_doc_number] => 11918941 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-03-05 [patent_title] => Integrated module with stage one and stage two filters combined in single housing [patent_app_type] => utility [patent_app_number] => 17/888179 [patent_app_country] => US [patent_app_date] => 2022-08-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 33 [patent_figures_cnt] => 43 [patent_no_of_words] => 11885 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 108 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17888179 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/888179
Integrated module with stage one and stage two filters combined in single housing Aug 14, 2022 Issued
Array ( [id] => 19890182 [patent_doc_number] => 20250115494 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-04-10 [patent_title] => REMOVAL OF VIRUSES FROM WATER BY FILTRATION [patent_app_type] => utility [patent_app_number] => 18/294612 [patent_app_country] => US [patent_app_date] => 2022-08-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6922 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 93 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18294612 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/294612
REMOVAL OF VIRUSES FROM WATER BY FILTRATION Aug 3, 2022 Pending
Array ( [id] => 18939978 [patent_doc_number] => 20240035117 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-01 [patent_title] => APPARATUS AND METHOD FOR VERSATILE ION-EXCHANGE EXTRACTION OF LITHIUM FROM NATURAL OR TECHNOLOGICAL LITHIUM-CONTAINING BRINE BY USING A LITHIUM-SELECTIVE INORGANIC SORBENT [patent_app_type] => utility [patent_app_number] => 17/877925 [patent_app_country] => US [patent_app_date] => 2022-07-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7307 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 417 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17877925 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/877925
Method for versatile ion-exchange extraction of lithium from natural or technological lithium-containing brine by using a lithium-selective inorganic sorbent Jul 29, 2022 Issued
Array ( [id] => 17981571 [patent_doc_number] => 20220347607 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-11-03 [patent_title] => Filter for Filtering Fluid, Bypass Valve Arrangement for a Filter, and Diffuser Device for a Filter [patent_app_type] => utility [patent_app_number] => 17/867930 [patent_app_country] => US [patent_app_date] => 2022-07-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14640 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -33 [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] => 17867930 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/867930
Filter for filtering fluid, bypass valve arrangement for a filter, and diffuser device for a filter Jul 18, 2022 Issued
Array ( [id] => 19915422 [patent_doc_number] => 12290770 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-05-06 [patent_title] => Filtration system with bypass and filtering configurations, and components and methods of operation thereof [patent_app_type] => utility [patent_app_number] => 17/861815 [patent_app_country] => US [patent_app_date] => 2022-07-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 26 [patent_no_of_words] => 3279 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 208 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17861815 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/861815
Filtration system with bypass and filtering configurations, and components and methods of operation thereof Jul 10, 2022 Issued
Array ( [id] => 18931368 [patent_doc_number] => 11883765 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-01-30 [patent_title] => Pleated fluid filter element and methods [patent_app_type] => utility [patent_app_number] => 17/856363 [patent_app_country] => US [patent_app_date] => 2022-07-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 15 [patent_no_of_words] => 8285 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [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] => 17856363 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/856363
Pleated fluid filter element and methods Jun 30, 2022 Issued
Array ( [id] => 19360004 [patent_doc_number] => 20240262038 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-08 [patent_title] => DISPOSAL OF WATER SOLUBLE WASTE IN ADDITIVE MANUFACTURING [patent_app_type] => utility [patent_app_number] => 18/574861 [patent_app_country] => US [patent_app_date] => 2022-06-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 18656 [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] => 18574861 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/574861
Disposal of water soluble waste in additive manufacturing Jun 29, 2022 Issued
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