Search

David J. Walczak

Examiner (ID: 10606, Phone: (571)272-4895 , Office: P/3754 )

Most Active Art Unit
3754
Art Unit(s)
3754, 2403, 3105, 2832, 2899, 3751
Total Applications
4760
Issued Applications
3699
Pending Applications
263
Abandoned Applications
828

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20633044 [patent_doc_number] => 12593907 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-04-07 [patent_title] => Stick-type product with heating function [patent_app_type] => utility [patent_app_number] => 18/366304 [patent_app_country] => US [patent_app_date] => 2023-08-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 11 [patent_no_of_words] => 3146 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 93 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18366304 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/366304
Stick-type product with heating function Aug 6, 2023 Issued
Array ( [id] => 20163663 [patent_doc_number] => 20250255709 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-08-14 [patent_title] => APPLICATION NOZZLE FOR DISCHARGING A DENTAL ACTIVE SUBSTANCE IN THE ORAL CAVITY OF A PATIENT, AND ACTIVE SUBSTANCE APPLICATOR HAVING SUCH AN APPLICATION NOZZLE [patent_app_type] => utility [patent_app_number] => 19/099907 [patent_app_country] => US [patent_app_date] => 2023-08-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10317 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -21 [patent_words_short_claim] => 86 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19099907 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/099907
Application nozzle for discharging a dental active substance in the oral cavity of a patient, and active substance applicator having such an application nozzle Jul 31, 2023 Issued
Array ( [id] => 18954464 [patent_doc_number] => 20240042791 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-08 [patent_title] => WRITING SYSTEM HAVING MAGNETIC WRITING TOOL AND MAGNETIC SUPPORT SURFACE THEREFOR [patent_app_type] => utility [patent_app_number] => 18/363196 [patent_app_country] => US [patent_app_date] => 2023-08-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6263 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18363196 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/363196
Writing system having magnetic writing tool and magnetic support surface therefor Jul 31, 2023 Issued
Array ( [id] => 19456370 [patent_doc_number] => 12096833 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-09-24 [patent_title] => Reusable cartridge systems, devices, and methods [patent_app_type] => utility [patent_app_number] => 18/361749 [patent_app_country] => US [patent_app_date] => 2023-07-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 13 [patent_no_of_words] => 11573 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 235 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18361749 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/361749
Reusable cartridge systems, devices, and methods Jul 27, 2023 Issued
Array ( [id] => 19623505 [patent_doc_number] => 12162304 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-12-10 [patent_title] => Writing implement holder [patent_app_type] => utility [patent_app_number] => 18/226377 [patent_app_country] => US [patent_app_date] => 2023-07-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 7 [patent_no_of_words] => 2643 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 104 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18226377 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/226377
Writing implement holder Jul 25, 2023 Issued
Array ( [id] => 18878338 [patent_doc_number] => 20240001707 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-04 [patent_title] => MULTI-PEN HAVING SHARP KNOB CONTAINING A THROUGH HOLE FOR SHARP LEAD [patent_app_type] => utility [patent_app_number] => 18/358901 [patent_app_country] => US [patent_app_date] => 2023-07-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1881 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 114 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18358901 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/358901
Multi-pen having sharp knob containing a through hole for sharp lead Jul 24, 2023 Issued
Array ( [id] => 19665592 [patent_doc_number] => 12178310 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-12-31 [patent_title] => Personal care product dispensing system [patent_app_type] => utility [patent_app_number] => 18/357317 [patent_app_country] => US [patent_app_date] => 2023-07-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 5161 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 115 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18357317 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/357317
Personal care product dispensing system Jul 23, 2023 Issued
Array ( [id] => 18937542 [patent_doc_number] => 20240032681 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-01 [patent_title] => Cosmetic liquid-dispensing hair edge control tool with brush, comb and hair styling tip [patent_app_type] => utility [patent_app_number] => 18/355758 [patent_app_country] => US [patent_app_date] => 2023-07-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 827 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -3 [patent_words_short_claim] => 88 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18355758 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/355758
Cosmetic liquid-dispensing hair edge control tool with brush, comb and hair styling tip Jul 19, 2023 Abandoned
Array ( [id] => 19423291 [patent_doc_number] => 12082679 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-09-10 [patent_title] => Split applicator [patent_app_type] => utility [patent_app_number] => 18/222494 [patent_app_country] => US [patent_app_date] => 2023-07-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 22 [patent_figures_cnt] => 43 [patent_no_of_words] => 4328 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 317 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18222494 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/222494
Split applicator Jul 16, 2023 Issued
Array ( [id] => 19490179 [patent_doc_number] => 12108861 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-10-08 [patent_title] => Cosmetic-dispensing spatula [patent_app_type] => utility [patent_app_number] => 18/352523 [patent_app_country] => US [patent_app_date] => 2023-07-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 8718 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 291 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18352523 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/352523
Cosmetic-dispensing spatula Jul 13, 2023 Issued
Array ( [id] => 19496003 [patent_doc_number] => 20240335021 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-10 [patent_title] => REFILL UNIT AND REFILLABLE STICK CONTAINER HAVING THE SAME [patent_app_type] => utility [patent_app_number] => 18/352027 [patent_app_country] => US [patent_app_date] => 2023-07-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10807 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 190 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18352027 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/352027
Refill unit and refillable stick container having the same Jul 12, 2023 Issued
Array ( [id] => 18716025 [patent_doc_number] => 11793344 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2023-10-24 [patent_title] => Apparatus for sanitary and controlled dispensing of food products [patent_app_type] => utility [patent_app_number] => 18/350199 [patent_app_country] => US [patent_app_date] => 2023-07-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3112 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 105 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18350199 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/350199
Apparatus for sanitary and controlled dispensing of food products Jul 10, 2023 Issued
Array ( [id] => 20486762 [patent_doc_number] => 20260022960 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-01-22 [patent_title] => PROCESS WATER ANALYZER [patent_app_type] => utility [patent_app_number] => 18/995639 [patent_app_country] => US [patent_app_date] => 2023-07-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 0 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [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] => 18995639 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/995639
PROCESS WATER ANALYZER Jul 10, 2023 Pending
Array ( [id] => 20491043 [patent_doc_number] => 12532893 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-01-27 [patent_title] => Dispensing system for transferring chemical into a strainer basket assembly [patent_app_type] => utility [patent_app_number] => 18/349320 [patent_app_country] => US [patent_app_date] => 2023-07-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 21 [patent_no_of_words] => 5672 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 118 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18349320 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/349320
Dispensing system for transferring chemical into a strainer basket assembly Jul 9, 2023 Issued
Array ( [id] => 20459240 [patent_doc_number] => 20260008663 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-01-08 [patent_title] => BEVERAGE DISPENSE SYSTEM [patent_app_type] => utility [patent_app_number] => 18/881589 [patent_app_country] => US [patent_app_date] => 2023-07-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2252 [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] => 18881589 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/881589
BEVERAGE DISPENSE SYSTEM Jul 6, 2023 Pending
Array ( [id] => 20334825 [patent_doc_number] => 20250338945 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-11-06 [patent_title] => FORK FOR CARTRIDGE CORE, CARTRIDGE CORE, AND COSMETIC CONTAINER [patent_app_type] => utility [patent_app_number] => 18/870473 [patent_app_country] => US [patent_app_date] => 2023-06-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 0 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [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] => 18870473 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/870473
FORK FOR CARTRIDGE CORE, CARTRIDGE CORE, AND COSMETIC CONTAINER Jun 28, 2023 Pending
Array ( [id] => 18937543 [patent_doc_number] => 20240032682 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-01 [patent_title] => Applicator for Applying Flowable Materials [patent_app_type] => utility [patent_app_number] => 18/336980 [patent_app_country] => US [patent_app_date] => 2023-06-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7627 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -20 [patent_words_short_claim] => 52 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18336980 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/336980
Applicator for applying flowable materials Jun 16, 2023 Issued
Array ( [id] => 19914879 [patent_doc_number] => 12290223 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-05-06 [patent_title] => Floor cleaning apparatus and liquid delivery assembly for use in floor cleaning apparatus [patent_app_type] => utility [patent_app_number] => 18/333464 [patent_app_country] => US [patent_app_date] => 2023-06-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 29 [patent_figures_cnt] => 50 [patent_no_of_words] => 4196 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 110 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18333464 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/333464
Floor cleaning apparatus and liquid delivery assembly for use in floor cleaning apparatus Jun 11, 2023 Issued
Array ( [id] => 20377366 [patent_doc_number] => 20250359859 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-11-27 [patent_title] => LIQUID DISPENSER WITH CONTROLLED DISPENSING [patent_app_type] => utility [patent_app_number] => 18/872332 [patent_app_country] => US [patent_app_date] => 2023-06-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1083 [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] => 18872332 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/872332
LIQUID DISPENSER WITH CONTROLLED DISPENSING Jun 5, 2023 Pending
Array ( [id] => 19352652 [patent_doc_number] => 12053077 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-08-06 [patent_title] => Refill for cosmetic product receptacle and associated receptacle [patent_app_type] => utility [patent_app_number] => 18/203204 [patent_app_country] => US [patent_app_date] => 2023-05-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 15 [patent_no_of_words] => 7190 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 148 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18203204 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/203204
Refill for cosmetic product receptacle and associated receptacle May 29, 2023 Issued
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