Search

David H Malzahn

Examiner (ID: 9042, Phone: (571)272-3727 , Office: P/2182 )

Most Active Art Unit
2193
Art Unit(s)
2307, 2302, 2193, 2183, 2301, 2306, 2121, 2124, 2787, 2182, 2786
Total Applications
3174
Issued Applications
2743
Pending Applications
60
Abandoned Applications
371

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20382868 [patent_doc_number] => 20250365361 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-11-27 [patent_title] => ADDITIONAL INFORMATION ON A CALLER [patent_app_type] => utility [patent_app_number] => 19/298059 [patent_app_country] => US [patent_app_date] => 2025-08-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8438 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 156 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19298059 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/298059
ADDITIONAL INFORMATION ON A CALLER Aug 11, 2025 Pending
Array ( [id] => 19994940 [patent_doc_number] => 20250133162 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-04-24 [patent_title] => SYSTEM AND A METHOD OF USING SEQUENTIAL NUMBERING TO DETECT A FRAUDULENT TELEPHONE CALL WITHIN A TELEPHONE SYSTEM [patent_app_type] => utility [patent_app_number] => 18/937050 [patent_app_country] => US [patent_app_date] => 2024-11-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1194 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 152 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18937050 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/937050
System and a method of using sequential numbering to detect a fraudulent telephone call within a telephone system Nov 4, 2024 Issued
Array ( [id] => 19547775 [patent_doc_number] => 20240364811 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-31 [patent_title] => SEMICONDUCTOR DEVICE HAVING MORE SIMILAR CELL DENSITIES IN ALTERNATING ROWS, AND METHOD OF FORMING THE SAME [patent_app_type] => utility [patent_app_number] => 18/769036 [patent_app_country] => US [patent_app_date] => 2024-07-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14766 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 125 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18769036 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/769036
SEMICONDUCTOR DEVICE HAVING MORE SIMILAR CELL DENSITIES IN ALTERNATING ROWS, AND METHOD OF FORMING THE SAME Jul 9, 2024 Pending
Array ( [id] => 19517062 [patent_doc_number] => 20240348748 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-17 [patent_title] => TRANSMISSION TERMINAL, TRANSMISSION METHOD, AND COMPUTER-READABLE RECORDING MEDIUM STORING TRANSMISSION PROGRAM [patent_app_type] => utility [patent_app_number] => 18/754800 [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] => 18053 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => 0 [patent_words_short_claim] => 104 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18754800 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/754800
TRANSMISSION TERMINAL, TRANSMISSION METHOD, AND COMPUTER-READABLE RECORDING MEDIUM STORING TRANSMISSION PROGRAM Jun 25, 2024 Pending
Array ( [id] => 19874579 [patent_doc_number] => 12267458 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-04-01 [patent_title] => Systems and methods for call placement over a public switched telephone network [patent_app_type] => utility [patent_app_number] => 18/644786 [patent_app_country] => US [patent_app_date] => 2024-04-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 21 [patent_no_of_words] => 26261 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 160 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18644786 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/644786
Systems and methods for call placement over a public switched telephone network Apr 23, 2024 Issued
Array ( [id] => 19386062 [patent_doc_number] => 20240275932 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-15 [patent_title] => INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND PROGRAM [patent_app_type] => utility [patent_app_number] => 18/633406 [patent_app_country] => US [patent_app_date] => 2024-04-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 17220 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [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] => 18633406 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/633406
INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND PROGRAM Apr 10, 2024 Abandoned
Array ( [id] => 19460915 [patent_doc_number] => 12101441 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-09-24 [patent_title] => Systems and methods for providing caller identification over a public switched telephone network [patent_app_type] => utility [patent_app_number] => 18/622749 [patent_app_country] => US [patent_app_date] => 2024-03-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 36 [patent_figures_cnt] => 42 [patent_no_of_words] => 34138 [patent_no_of_claims] => 28 [patent_no_of_ind_claims] => 4 [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] => 18622749 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/622749
Systems and methods for providing caller identification over a public switched telephone network Mar 28, 2024 Issued
Array ( [id] => 19606114 [patent_doc_number] => 20240396994 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-11-28 [patent_title] => AUTOMATIC CALLER IDENTIFICATION TRANSLATION [patent_app_type] => utility [patent_app_number] => 18/622569 [patent_app_country] => US [patent_app_date] => 2024-03-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7267 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [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] => 18622569 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/622569
Automatic caller identification translation Mar 28, 2024 Issued
Array ( [id] => 19350566 [patent_doc_number] => 20240259530 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-01 [patent_title] => REMOTE COLLABORATIONS WITH VOLUMETRIC SPACE INDICATIONS [patent_app_type] => utility [patent_app_number] => 18/614340 [patent_app_country] => US [patent_app_date] => 2024-03-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8237 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 142 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18614340 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/614340
REMOTE COLLABORATIONS WITH VOLUMETRIC SPACE INDICATIONS Mar 21, 2024 Pending
Array ( [id] => 19287249 [patent_doc_number] => 20240223730 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-04 [patent_title] => CALL INTERACTION METHOD AND APPARATUS, COMPUTER DEVICE, AND STORAGE MEDIUM [patent_app_type] => utility [patent_app_number] => 18/602568 [patent_app_country] => US [patent_app_date] => 2024-03-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 18069 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18602568 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/602568
CALL INTERACTION METHOD AND APPARATUS, COMPUTER DEVICE, AND STORAGE MEDIUM Mar 11, 2024 Pending
Array ( [id] => 19270786 [patent_doc_number] => 20240214492 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-06-27 [patent_title] => Blocking Communications Based On Unsuccessful Responses To Challenges [patent_app_type] => utility [patent_app_number] => 18/601568 [patent_app_country] => US [patent_app_date] => 2024-03-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15484 [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] => 18601568 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/601568
Blocking Communications Based On Unsuccessful Responses To Challenges Mar 10, 2024 Pending
Array ( [id] => 19287220 [patent_doc_number] => 20240223701 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-04 [patent_title] => Telephone Number Verification [patent_app_type] => utility [patent_app_number] => 18/581538 [patent_app_country] => US [patent_app_date] => 2024-02-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6091 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 62 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18581538 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/581538
Telephone Number Verification Feb 19, 2024 Abandoned
Array ( [id] => 20183281 [patent_doc_number] => 20250267239 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-08-21 [patent_title] => GENERATIVE COMMUNICATION SESSION EVENT EFFECTS [patent_app_type] => utility [patent_app_number] => 18/442818 [patent_app_country] => US [patent_app_date] => 2024-02-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7929 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 63 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18442818 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/442818
GENERATIVE COMMUNICATION SESSION EVENT EFFECTS Feb 14, 2024 Pending
Array ( [id] => 19177394 [patent_doc_number] => 20240163368 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-16 [patent_title] => PROVIDING ENHANCED CALL CONTENT BASED ON CALL NUMBER ASSOCIATION [patent_app_type] => utility [patent_app_number] => 18/418233 [patent_app_country] => US [patent_app_date] => 2024-01-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10894 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 68 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18418233 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/418233
PROVIDING ENHANCED CALL CONTENT BASED ON CALL NUMBER ASSOCIATION Jan 19, 2024 Pending
Array ( [id] => 20073451 [patent_doc_number] => 20250211673 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-06-26 [patent_title] => DETECTION AND METHODS FOR HANDLING A TDOS ATTACK [patent_app_type] => utility [patent_app_number] => 18/394986 [patent_app_country] => US [patent_app_date] => 2023-12-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6057 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 70 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18394986 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/394986
DETECTION AND METHODS FOR HANDLING A TDOS ATTACK Dec 21, 2023 Pending
Array ( [id] => 19117681 [patent_doc_number] => 20240129431 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-18 [patent_title] => Enhanced Caller Identification [patent_app_type] => utility [patent_app_number] => 18/531084 [patent_app_country] => US [patent_app_date] => 2023-12-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 16310 [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] => 18531084 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/531084
Enhanced Caller Identification Dec 5, 2023 Pending
Array ( [id] => 20044568 [patent_doc_number] => 20250182790 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-06-05 [patent_title] => AUDIO GUESTBOOK SYSTEMS AND METHODS [patent_app_type] => utility [patent_app_number] => 18/526929 [patent_app_country] => US [patent_app_date] => 2023-12-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3546 [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] => 18526929 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/526929
AUDIO GUESTBOOK SYSTEMS AND METHODS Nov 30, 2023 Pending
Array ( [id] => 20081828 [patent_doc_number] => 12355916 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-07-08 [patent_title] => Systems and methods for generating customized customer service menu [patent_app_type] => utility [patent_app_number] => 18/519661 [patent_app_country] => US [patent_app_date] => 2023-11-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 4700 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 127 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18519661 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/519661
Systems and methods for generating customized customer service menu Nov 26, 2023 Issued
Array ( [id] => 20119070 [patent_doc_number] => 12368798 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-07-22 [patent_title] => Restricting access based on voice communication parameters [patent_app_type] => utility [patent_app_number] => 18/517984 [patent_app_country] => US [patent_app_date] => 2023-11-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 17 [patent_no_of_words] => 12512 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 87 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18517984 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/517984
Restricting access based on voice communication parameters Nov 21, 2023 Issued
Array ( [id] => 18976026 [patent_doc_number] => 20240056118 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-15 [patent_title] => WIRELESS COMMUNICATION DEVICE AND WIRELESS COMMUNICATION METHOD [patent_app_type] => utility [patent_app_number] => 18/494991 [patent_app_country] => US [patent_app_date] => 2023-10-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8771 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -3 [patent_words_short_claim] => 294 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18494991 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/494991
WIRELESS COMMUNICATION DEVICE AND WIRELESS COMMUNICATION METHOD Oct 25, 2023 Pending
Menu