Search

Nancy N. Prasad

Examiner (ID: 5087, Phone: (571)270-3265 , Office: P/3624 )

Most Active Art Unit
3624
Art Unit(s)
3684, 3624, 3692
Total Applications
366
Issued Applications
72
Pending Applications
55
Abandoned Applications
254

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 18349043 [patent_doc_number] => 20230137154 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-05-04 [patent_title] => REDUCED LEACHING OF A LIGAND [patent_app_type] => utility [patent_app_number] => 17/884387 [patent_app_country] => US [patent_app_date] => 2022-08-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13910 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -21 [patent_words_short_claim] => 45 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17884387 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/884387
REDUCED LEACHING OF A LIGAND Aug 8, 2022 Abandoned
Array ( [id] => 20178641 [patent_doc_number] => 20250262599 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-08-21 [patent_title] => PREPARATION METHOD OF JANUS CERAMIC MEMBRANE AND APPLICATION OF JANUS CERAMIC MEMBRANE IN DISPERSION-INTENSIFIED BUBBLE AERATION PROCESS [patent_app_type] => utility [patent_app_number] => 18/998134 [patent_app_country] => US [patent_app_date] => 2022-08-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1234 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [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] => 18998134 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/998134
PREPARATION METHOD OF JANUS CERAMIC MEMBRANE AND APPLICATION OF JANUS CERAMIC MEMBRANE IN DISPERSION-INTENSIFIED BUBBLE AERATION PROCESS Aug 2, 2022 Pending
Array ( [id] => 20178641 [patent_doc_number] => 20250262599 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-08-21 [patent_title] => PREPARATION METHOD OF JANUS CERAMIC MEMBRANE AND APPLICATION OF JANUS CERAMIC MEMBRANE IN DISPERSION-INTENSIFIED BUBBLE AERATION PROCESS [patent_app_type] => utility [patent_app_number] => 18/998134 [patent_app_country] => US [patent_app_date] => 2022-08-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1234 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [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] => 18998134 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/998134
PREPARATION METHOD OF JANUS CERAMIC MEMBRANE AND APPLICATION OF JANUS CERAMIC MEMBRANE IN DISPERSION-INTENSIFIED BUBBLE AERATION PROCESS Aug 2, 2022 Pending
Array ( [id] => 17929613 [patent_doc_number] => 20220324738 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-10-13 [patent_title] => WATER PURIFIER [patent_app_type] => utility [patent_app_number] => 17/853272 [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] => 11695 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 108 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17853272 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/853272
WATER PURIFIER Jun 28, 2022 Pending
Array ( [id] => 17929613 [patent_doc_number] => 20220324738 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-10-13 [patent_title] => WATER PURIFIER [patent_app_type] => utility [patent_app_number] => 17/853272 [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] => 11695 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 108 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17853272 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/853272
WATER PURIFIER Jun 28, 2022 Pending
Array ( [id] => 18003978 [patent_doc_number] => 20220362744 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-11-17 [patent_title] => Separation Matrix and a Method of Separating Antibodies [patent_app_type] => utility [patent_app_number] => 17/853514 [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] => 4796 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 131 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17853514 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/853514
Separation Matrix and a Method of Separating Antibodies Jun 28, 2022 Pending
Array ( [id] => 19497486 [patent_doc_number] => 20240336504 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-10 [patent_title] => SYSTEMS FOR CATALYTICALLY REMOVING PER- AND POLYFLUOROALKYL SUBSTANCES FROM A FLUID AND RELATED METHODS [patent_app_type] => utility [patent_app_number] => 18/573844 [patent_app_country] => US [patent_app_date] => 2022-06-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11704 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -34 [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] => 18573844 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/573844
SYSTEMS FOR CATALYTICALLY REMOVING PER- AND POLYFLUOROALKYL SUBSTANCES FROM A FLUID AND RELATED METHODS Jun 22, 2022 Pending
Array ( [id] => 18076281 [patent_doc_number] => 20220401893 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-12-22 [patent_title] => POLY(QUINOLINE) MEMBRANES [patent_app_type] => utility [patent_app_number] => 17/840394 [patent_app_country] => US [patent_app_date] => 2022-06-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6705 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -20 [patent_words_short_claim] => 21 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17840394 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/840394
POLY(QUINOLINE) MEMBRANES Jun 13, 2022 Pending
Array ( [id] => 18274555 [patent_doc_number] => 11613485 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-03-28 [patent_title] => Treatment of tailings with lime at elevated PH levels [patent_app_type] => utility [patent_app_number] => 17/840297 [patent_app_country] => US [patent_app_date] => 2022-06-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 12 [patent_no_of_words] => 9279 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 73 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17840297 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/840297
Treatment of tailings with lime at elevated PH levels Jun 13, 2022 Issued
Array ( [id] => 19059220 [patent_doc_number] => 11938417 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-03-26 [patent_title] => Methods and systems for removing pressure and air from chromatography columns [patent_app_type] => utility [patent_app_number] => 17/836412 [patent_app_country] => US [patent_app_date] => 2022-06-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 29 [patent_figures_cnt] => 31 [patent_no_of_words] => 8687 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 400 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17836412 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/836412
Methods and systems for removing pressure and air from chromatography columns Jun 8, 2022 Issued
Array ( [id] => 18058645 [patent_doc_number] => 20220389731 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-12-08 [patent_title] => VESSELS SUCH AS SWIMMING POOLS OR SPAS OMITTING DEDICATED PLUMBED WATER-CIRCULATION SYSTEMS [patent_app_type] => utility [patent_app_number] => 17/833146 [patent_app_country] => US [patent_app_date] => 2022-06-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3231 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 23 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17833146 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/833146
VESSELS SUCH AS SWIMMING POOLS OR SPAS OMITTING DEDICATED PLUMBED WATER-CIRCULATION SYSTEMS Jun 5, 2022 Pending
Array ( [id] => 17881611 [patent_doc_number] => 20220297088 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-09-22 [patent_title] => FUNCTIONALIZED SUPPORT MATERIAL AND METHODS OF MAKING AND USING FUNCTIONALIZED SUPPORT MATERIAL [patent_app_type] => utility [patent_app_number] => 17/832237 [patent_app_country] => US [patent_app_date] => 2022-06-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12379 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -3 [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] => 17832237 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/832237
FUNCTIONALIZED SUPPORT MATERIAL AND METHODS OF MAKING AND USING FUNCTIONALIZED SUPPORT MATERIAL Jun 2, 2022 Abandoned
Array ( [id] => 20315402 [patent_doc_number] => 12453942 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-10-28 [patent_title] => Porous poly (cyclic olefin) membranes [patent_app_type] => utility [patent_app_number] => 17/738518 [patent_app_country] => US [patent_app_date] => 2022-05-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 2309 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 136 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17738518 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/738518
Porous poly (cyclic olefin) membranes May 5, 2022 Issued
Array ( [id] => 17806295 [patent_doc_number] => 20220258130 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-08-18 [patent_title] => Chromatography Media [patent_app_type] => utility [patent_app_number] => 17/735882 [patent_app_country] => US [patent_app_date] => 2022-05-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3768 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 69 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17735882 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/735882
Chromatography Media May 2, 2022 Pending
Array ( [id] => 18003975 [patent_doc_number] => 20220362741 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-11-17 [patent_title] => HYDROLYTICALLY STABLE ZWITTERIONIC CHROMATOGRAPHIC MATERIALS [patent_app_type] => utility [patent_app_number] => 17/731952 [patent_app_country] => US [patent_app_date] => 2022-04-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6574 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -20 [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] => 17731952 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/731952
HYDROLYTICALLY STABLE ZWITTERIONIC CHROMATOGRAPHIC MATERIALS Apr 27, 2022 Pending
Array ( [id] => 19242948 [patent_doc_number] => 12013380 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-06-18 [patent_title] => System and method for controlling fluid flow within a liquid chromatography system [patent_app_type] => utility [patent_app_number] => 17/731318 [patent_app_country] => US [patent_app_date] => 2022-04-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 12 [patent_no_of_words] => 6531 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 116 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17731318 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/731318
System and method for controlling fluid flow within a liquid chromatography system Apr 27, 2022 Issued
Array ( [id] => 17928785 [patent_doc_number] => 20220323910 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-10-13 [patent_title] => SYSTEMS AND METHODS FOR TANGENTIAL FLOW DEPTH FILTRATION [patent_app_type] => utility [patent_app_number] => 17/719850 [patent_app_country] => US [patent_app_date] => 2022-04-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15800 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -35 [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] => 17719850 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/719850
SYSTEMS AND METHODS FOR TANGENTIAL FLOW DEPTH FILTRATION Apr 12, 2022 Pending
Array ( [id] => 18658317 [patent_doc_number] => 20230304312 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-28 [patent_title] => LIQUID-SUBMERSIBLE VACUUM SYSTEM AND COMPONENTS THEREOF [patent_app_type] => utility [patent_app_number] => 17/700936 [patent_app_country] => US [patent_app_date] => 2022-03-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3959 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 90 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17700936 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/700936
LIQUID-SUBMERSIBLE VACUUM SYSTEM AND COMPONENTS THEREOF Mar 21, 2022 Pending
Array ( [id] => 17895742 [patent_doc_number] => 20220305404 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-09-29 [patent_title] => LIQUID-LIQUID EXTRACTION UNIT AND MULTISTAGE LIQUID-LIQUID EXTRACTION APPARATUS USING THE SAME [patent_app_type] => utility [patent_app_number] => 17/691333 [patent_app_country] => US [patent_app_date] => 2022-03-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5890 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 319 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17691333 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/691333
LIQUID-LIQUID EXTRACTION UNIT AND MULTISTAGE LIQUID-LIQUID EXTRACTION APPARATUS USING THE SAME Mar 9, 2022 Pending
Array ( [id] => 17686327 [patent_doc_number] => 20220193619 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-06-23 [patent_title] => METHOD FOR PRODUCING PERMSELECTIVE MEMBRANE [patent_app_type] => utility [patent_app_number] => 17/690621 [patent_app_country] => US [patent_app_date] => 2022-03-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4256 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 73 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17690621 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/690621
METHOD FOR PRODUCING PERMSELECTIVE MEMBRANE Mar 8, 2022 Abandoned
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