Search

Keith Alan Christianson

Examiner (ID: 7113)

Most Active Art Unit
2813
Art Unit(s)
2813, 1104
Total Applications
377
Issued Applications
355
Pending Applications
11
Abandoned Applications
11

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20364586 [patent_doc_number] => 20250354398 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-11-20 [patent_title] => Apparatus for Removing a Layer of Sediment Which Has Settled on the Bottom of a Large Water Body [patent_app_type] => utility [patent_app_number] => 19/286396 [patent_app_country] => US [patent_app_date] => 2025-07-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9386 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 229 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19286396 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/286396
Apparatus for Removing a Layer of Sediment Which Has Settled on the Bottom of a Large Water Body Jul 30, 2025 Pending
Array ( [id] => 20047558 [patent_doc_number] => 20250185780 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-06-12 [patent_title] => CLEANING ASSEMBLY FOR HAIR CUTTING DEVICES [patent_app_type] => utility [patent_app_number] => 18/969557 [patent_app_country] => US [patent_app_date] => 2024-12-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3702 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 195 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18969557 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/969557
Cleaning assembly for hair cutting devices Dec 4, 2024 Issued
Array ( [id] => 20047558 [patent_doc_number] => 20250185780 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-06-12 [patent_title] => CLEANING ASSEMBLY FOR HAIR CUTTING DEVICES [patent_app_type] => utility [patent_app_number] => 18/969557 [patent_app_country] => US [patent_app_date] => 2024-12-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3702 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 195 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18969557 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/969557
Cleaning assembly for hair cutting devices Dec 4, 2024 Issued
Array ( [id] => 20047558 [patent_doc_number] => 20250185780 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-06-12 [patent_title] => CLEANING ASSEMBLY FOR HAIR CUTTING DEVICES [patent_app_type] => utility [patent_app_number] => 18/969557 [patent_app_country] => US [patent_app_date] => 2024-12-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3702 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 195 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18969557 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/969557
Cleaning assembly for hair cutting devices Dec 4, 2024 Issued
Array ( [id] => 19832872 [patent_doc_number] => 20250084658 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-13 [patent_title] => Apparatus for Removing a Layer of Sediment Which Has Settled on the Bottom of a Large Water Body [patent_app_type] => utility [patent_app_number] => 18/956492 [patent_app_country] => US [patent_app_date] => 2024-11-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15018 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 214 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18956492 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/956492
Apparatus for removing a layer of sediment which has settled on the bottom of a large water body Nov 21, 2024 Issued
Array ( [id] => 19801150 [patent_doc_number] => 20250067075 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-27 [patent_title] => MOVING APPARATUS, CLEANING DEVICE, AND CLEANING DEVICE CONTROL METHOD [patent_app_type] => utility [patent_app_number] => 18/946861 [patent_app_country] => US [patent_app_date] => 2024-11-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 41620 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 234 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18946861 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/946861
Moving apparatus, cleaning device, and cleaning device control method Nov 12, 2024 Issued
Array ( [id] => 20226571 [patent_doc_number] => 12415211 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-09-16 [patent_title] => Systems and methods for controlling algal growth inair conditioning systems [patent_app_type] => utility [patent_app_number] => 18/902860 [patent_app_country] => US [patent_app_date] => 2024-09-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 9 [patent_no_of_words] => 0 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 83 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18902860 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/902860
Systems and methods for controlling algal growth inair conditioning systems Sep 29, 2024 Issued
Array ( [id] => 19831859 [patent_doc_number] => 20250083645 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-13 [patent_title] => FLUIDIC DISTRIBUTION SYSTEM FOR CLEANING VEHICLE SURFACES [patent_app_type] => utility [patent_app_number] => 18/830732 [patent_app_country] => US [patent_app_date] => 2024-09-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4049 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 149 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18830732 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/830732
FLUIDIC DISTRIBUTION SYSTEM FOR CLEANING VEHICLE SURFACES Sep 10, 2024 Pending
Array ( [id] => 19831859 [patent_doc_number] => 20250083645 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-13 [patent_title] => FLUIDIC DISTRIBUTION SYSTEM FOR CLEANING VEHICLE SURFACES [patent_app_type] => utility [patent_app_number] => 18/830732 [patent_app_country] => US [patent_app_date] => 2024-09-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4049 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 149 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18830732 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/830732
FLUIDIC DISTRIBUTION SYSTEM FOR CLEANING VEHICLE SURFACES Sep 10, 2024 Pending
Array ( [id] => 20163400 [patent_doc_number] => 20250255446 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-08-14 [patent_title] => ROLLER BRUSH ASSEMBLY, CLEANING DEVICE, DETECTION METHOD, AND STORAGE MEDIUM [patent_app_type] => utility [patent_app_number] => 18/819796 [patent_app_country] => US [patent_app_date] => 2024-08-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7036 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 54 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18819796 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/819796
ROLLER BRUSH ASSEMBLY, CLEANING DEVICE, DETECTION METHOD, AND STORAGE MEDIUM Aug 28, 2024 Pending
Array ( [id] => 19830362 [patent_doc_number] => 20250082148 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-13 [patent_title] => AGGLOMERATION UNIT, SUCTION DEVICE AND METHOD FOR AGGLOMERATING VACUUMED MATERIAL [patent_app_type] => utility [patent_app_number] => 18/814693 [patent_app_country] => US [patent_app_date] => 2024-08-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5373 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 26 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18814693 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/814693
AGGLOMERATION UNIT, SUCTION DEVICE AND METHOD FOR AGGLOMERATING VACUUMED MATERIAL Aug 25, 2024 Pending
Array ( [id] => 19722257 [patent_doc_number] => 20250025008 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-23 [patent_title] => STATION DEVICE ON WHICH CLEANER IS DOCKED AND OPERATING METHOD OF STATION DEVICE [patent_app_type] => utility [patent_app_number] => 18/778557 [patent_app_country] => US [patent_app_date] => 2024-07-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 26479 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 132 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18778557 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/778557
STATION DEVICE ON WHICH CLEANER IS DOCKED AND OPERATING METHOD OF STATION DEVICE Jul 18, 2024 Pending
Array ( [id] => 19546355 [patent_doc_number] => 20240363391 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-31 [patent_title] => PROCESSING APPARATUS AND PROCESSING METHOD [patent_app_type] => utility [patent_app_number] => 18/770734 [patent_app_country] => US [patent_app_date] => 2024-07-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9938 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 183 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18770734 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/770734
PROCESSING APPARATUS AND PROCESSING METHOD Jul 11, 2024 Pending
Array ( [id] => 19541280 [patent_doc_number] => 20240358316 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-31 [patent_title] => Oral Care System [patent_app_type] => utility [patent_app_number] => 18/764448 [patent_app_country] => US [patent_app_date] => 2024-07-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 30107 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 129 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18764448 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/764448
Oral Care System Jul 4, 2024 Pending
Array ( [id] => 19542183 [patent_doc_number] => 20240359219 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-31 [patent_title] => METHOD FOR PROTECTING AN OPTICAL SENSOR OF A VEHICLE FROM ENVIRONMENTAL POLLUTANTS [patent_app_type] => utility [patent_app_number] => 18/763796 [patent_app_country] => US [patent_app_date] => 2024-07-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5386 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -2 [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] => 18763796 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/763796
METHOD FOR PROTECTING AN OPTICAL SENSOR OF A VEHICLE FROM ENVIRONMENTAL POLLUTANTS Jul 2, 2024 Pending
Array ( [id] => 19509868 [patent_doc_number] => 20240341554 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-17 [patent_title] => CLEANING SYSTEM AND METHOD FOR OPERATING A CLEANING SYSTEM [patent_app_type] => utility [patent_app_number] => 18/755261 [patent_app_country] => US [patent_app_date] => 2024-06-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8424 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -33 [patent_words_short_claim] => 115 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18755261 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/755261
CLEANING SYSTEM AND METHOD FOR OPERATING A CLEANING SYSTEM Jun 25, 2024 Pending
Array ( [id] => 19509868 [patent_doc_number] => 20240341554 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-17 [patent_title] => CLEANING SYSTEM AND METHOD FOR OPERATING A CLEANING SYSTEM [patent_app_type] => utility [patent_app_number] => 18/755261 [patent_app_country] => US [patent_app_date] => 2024-06-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8424 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -33 [patent_words_short_claim] => 115 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18755261 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/755261
CLEANING SYSTEM AND METHOD FOR OPERATING A CLEANING SYSTEM Jun 25, 2024 Pending
Array ( [id] => 20420001 [patent_doc_number] => 20250382086 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-12-18 [patent_title] => BAG FORMER WASHING SYSTEMS AND METHODS [patent_app_type] => utility [patent_app_number] => 18/744487 [patent_app_country] => US [patent_app_date] => 2024-06-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2291 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 18744487 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/744487
BAG FORMER WASHING SYSTEMS AND METHODS Jun 13, 2024 Pending
Array ( [id] => 19629176 [patent_doc_number] => 20240407625 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-12 [patent_title] => Device and Apparatus [patent_app_type] => utility [patent_app_number] => 18/739803 [patent_app_country] => US [patent_app_date] => 2024-06-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 38071 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -24 [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] => 18739803 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/739803
Device and Apparatus Jun 10, 2024 Pending
Array ( [id] => 19683430 [patent_doc_number] => 20250001975 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-02 [patent_title] => WIPING APPARATUS FOR CAMERA AND CONTROL METHOD THEREFOR [patent_app_type] => utility [patent_app_number] => 18/735019 [patent_app_country] => US [patent_app_date] => 2024-06-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8201 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18735019 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/735019
WIPING APPARATUS FOR CAMERA AND CONTROL METHOD THEREFOR Jun 4, 2024 Pending
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