Search

Peter Keyworth

Examiner (ID: 3941, Phone: (571)270-3479 , Office: P/1777 )

Most Active Art Unit
1777
Art Unit(s)
1777, 1776
Total Applications
975
Issued Applications
484
Pending Applications
150
Abandoned Applications
357

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20505825 [patent_doc_number] => 12540092 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-02-03 [patent_title] => Method for circularly purifying metallurgical arsenic-containing acidic waste liquid and recovering sulfur [patent_app_type] => utility [patent_app_number] => 18/131399 [patent_app_country] => US [patent_app_date] => 2023-04-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 0 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 377 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18131399 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/131399
Method for circularly purifying metallurgical arsenic-containing acidic waste liquid and recovering sulfur Apr 5, 2023 Issued
Array ( [id] => 19731044 [patent_doc_number] => 12209034 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-01-28 [patent_title] => Temperature swing solvent extraction for descaling of feedstreams [patent_app_type] => utility [patent_app_number] => 18/131444 [patent_app_country] => US [patent_app_date] => 2023-04-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 10 [patent_no_of_words] => 9300 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 125 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18131444 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/131444
Temperature swing solvent extraction for descaling of feedstreams Apr 5, 2023 Issued
Array ( [id] => 18524213 [patent_doc_number] => 20230234870 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-07-27 [patent_title] => SYSTEM AND METHOD FOR TREATING REVERSE-OSMOSIS CONCENTRATED WATER WITH HIGH TEMPORARY HARDNESS [patent_app_type] => utility [patent_app_number] => 18/193681 [patent_app_country] => US [patent_app_date] => 2023-03-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5237 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 374 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18193681 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/193681
System and method for treating reverse-osmosis concentrated water with high temporary hardness Mar 30, 2023 Issued
Array ( [id] => 19090861 [patent_doc_number] => 11952291 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-04-09 [patent_title] => Device for efficiently recycling nickel in wastewater and method [patent_app_type] => utility [patent_app_number] => 18/193318 [patent_app_country] => US [patent_app_date] => 2023-03-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 5778 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 584 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18193318 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/193318
Device for efficiently recycling nickel in wastewater and method Mar 29, 2023 Issued
Array ( [id] => 18468612 [patent_doc_number] => 20230202894 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-06-29 [patent_title] => REMOVAL AND INHIBITION OF SCALE AND INHIBITION OF CORROSION BY USE OF MOSS [patent_app_type] => utility [patent_app_number] => 18/118328 [patent_app_country] => US [patent_app_date] => 2023-03-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4304 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 37 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18118328 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/118328
REMOVAL AND INHIBITION OF SCALE AND INHIBITION OF CORROSION BY USE OF MOSS Mar 6, 2023 Abandoned
Array ( [id] => 20451379 [patent_doc_number] => 12514421 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-01-06 [patent_title] => Device structure for multistage water-air separation of cleaning machine [patent_app_type] => utility [patent_app_number] => 18/118155 [patent_app_country] => US [patent_app_date] => 2023-03-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 0 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 728 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18118155 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/118155
Device structure for multistage water-air separation of cleaning machine Mar 6, 2023 Issued
Array ( [id] => 18612166 [patent_doc_number] => 20230278898 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-07 [patent_title] => Polyzirconium Coagulant and Application Thereof [patent_app_type] => utility [patent_app_number] => 18/177152 [patent_app_country] => US [patent_app_date] => 2023-03-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3352 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [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] => 18177152 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/177152
Polyzirconium coagulant and application thereof Mar 1, 2023 Issued
Array ( [id] => 19403431 [patent_doc_number] => 20240286942 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-29 [patent_title] => Method and System for Processing a Fluid [patent_app_type] => utility [patent_app_number] => 18/115410 [patent_app_country] => US [patent_app_date] => 2023-02-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10383 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 112 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18115410 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/115410
Method and System for Processing a Fluid Feb 27, 2023 Pending
Array ( [id] => 18497225 [patent_doc_number] => 20230219832 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-07-13 [patent_title] => TREATMENT OF TAILINGS STREAMS WITH ONE OR MORE DOSAGES OF LIME, AND ASSOCIATED SYSTEMS AND METHODS [patent_app_type] => utility [patent_app_number] => 18/173394 [patent_app_country] => US [patent_app_date] => 2023-02-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10129 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -27 [patent_words_short_claim] => 89 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18173394 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/173394
Treatment of tailings streams with one or more dosages of lime, and associated systems and methods Feb 22, 2023 Issued
Array ( [id] => 18435823 [patent_doc_number] => 20230183117 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-06-15 [patent_title] => WASTEWATER TREATMENT SYSTEM AND METHODOLOGY [patent_app_type] => utility [patent_app_number] => 18/164829 [patent_app_country] => US [patent_app_date] => 2023-02-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3366 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [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] => 18164829 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/164829
WASTEWATER TREATMENT SYSTEM AND METHODOLOGY Feb 5, 2023 Pending
Array ( [id] => 19845769 [patent_doc_number] => 20250091120 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-20 [patent_title] => DEVICE AND METHOD FOR PREPARING COOLING WATER ON DEMAND [patent_app_type] => utility [patent_app_number] => 18/727391 [patent_app_country] => US [patent_app_date] => 2023-02-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15720 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 393 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18727391 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/727391
DEVICE AND METHOD FOR PREPARING COOLING WATER ON DEMAND Feb 1, 2023 Pending
Array ( [id] => 18419945 [patent_doc_number] => 20230174405 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-06-08 [patent_title] => COOLING POND WATER TREATMENT SYSTEM [patent_app_type] => utility [patent_app_number] => 18/103470 [patent_app_country] => US [patent_app_date] => 2023-01-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3731 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -22 [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] => 18103470 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/103470
Cooling pond water treatment system Jan 29, 2023 Issued
Array ( [id] => 19345060 [patent_doc_number] => 20240254023 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-01 [patent_title] => ACID-DISPENSING SYSTEM FOR POOLS [patent_app_type] => utility [patent_app_number] => 18/102175 [patent_app_country] => US [patent_app_date] => 2023-01-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9197 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 91 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18102175 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/102175
ACID-DISPENSING SYSTEM FOR POOLS Jan 26, 2023 Pending
Array ( [id] => 19815415 [patent_doc_number] => 20250073622 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-06 [patent_title] => DEVICE FOR FILTERING A LIQUID PLASTIC AND CORRESPONDING OPERATING METHOD [patent_app_type] => utility [patent_app_number] => 18/727454 [patent_app_country] => US [patent_app_date] => 2023-01-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5852 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [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] => 18727454 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/727454
DEVICE FOR FILTERING A LIQUID PLASTIC AND CORRESPONDING OPERATING METHOD Jan 16, 2023 Pending
Array ( [id] => 19839358 [patent_doc_number] => 12251718 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-03-18 [patent_title] => Aerated hydrocyclone apparatus and method for cyclonic froth separation [patent_app_type] => utility [patent_app_number] => 18/154369 [patent_app_country] => US [patent_app_date] => 2023-01-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 9 [patent_no_of_words] => 5230 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 366 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18154369 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/154369
Aerated hydrocyclone apparatus and method for cyclonic froth separation Jan 12, 2023 Issued
Array ( [id] => 19861110 [patent_doc_number] => 20250099896 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-27 [patent_title] => Moisture Removal Device and Method [patent_app_type] => utility [patent_app_number] => 18/728207 [patent_app_country] => US [patent_app_date] => 2023-01-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 16733 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18728207 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/728207
Moisture Removal Device and Method Jan 10, 2023 Pending
Array ( [id] => 19845655 [patent_doc_number] => 20250091006 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-20 [patent_title] => ISOLATION AND PURIFICATION METHOD OF EXTRACELLULAR VESICLES [patent_app_type] => utility [patent_app_number] => 18/727760 [patent_app_country] => US [patent_app_date] => 2023-01-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7031 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 106 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18727760 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/727760
ISOLATION AND PURIFICATION METHOD OF EXTRACELLULAR VESICLES Jan 9, 2023 Pending
Array ( [id] => 18364382 [patent_doc_number] => 20230145973 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-05-11 [patent_title] => METHODS OF TREATING WATER TO REMOVE CONTAMINANTS AND WATER TREATMENT PLANTS FOR THE PRACTICE THEREOF [patent_app_type] => utility [patent_app_number] => 18/094003 [patent_app_country] => US [patent_app_date] => 2023-01-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7130 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -20 [patent_words_short_claim] => 18 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18094003 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/094003
METHODS OF TREATING WATER TO REMOVE CONTAMINANTS AND WATER TREATMENT PLANTS FOR THE PRACTICE THEREOF Jan 5, 2023 Abandoned
Array ( [id] => 19799322 [patent_doc_number] => 20250065247 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-27 [patent_title] => Coalescer Filter Used in Solvent Extraction Method [patent_app_type] => utility [patent_app_number] => 18/723999 [patent_app_country] => US [patent_app_date] => 2022-12-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9071 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [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] => 18723999 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/723999
Coalescer Filter Used in Solvent Extraction Method Dec 21, 2022 Pending
Array ( [id] => 19528017 [patent_doc_number] => 20240351919 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-24 [patent_title] => PROCESS AND APPARATUS FOR CONTINUOUS PRODUCTION OF ULTRAPURE WATER, USE THEREOF AND DEVICE FOR CUTTING OF PARTS [patent_app_type] => utility [patent_app_number] => 18/720111 [patent_app_country] => US [patent_app_date] => 2022-12-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4855 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 250 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18720111 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/720111
PROCESS AND APPARATUS FOR CONTINUOUS PRODUCTION OF ULTRAPURE WATER, USE THEREOF AND DEVICE FOR CUTTING OF PARTS Dec 13, 2022 Pending
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