Search

David H. Malzahn

Examiner (ID: 119, Phone: (571)272-3727 , Office: P/2182 )

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

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 17477769 [patent_doc_number] => 20220085273 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-03-17 [patent_title] => PIEZOELECTRIC DEVICE COMPRISING A MEMBRANE COMPRISING FIBRES OF A POLYHYDROXYALKANOATE [patent_app_type] => utility [patent_app_number] => 17/418043 [patent_app_country] => US [patent_app_date] => 2018-12-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3612 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 48 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17418043 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/418043
Piezoelectric device comprising a membrane comprising fibres of a polyhydroxyalkanoate Dec 26, 2018 Issued
Array ( [id] => 18767431 [patent_doc_number] => 11817848 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-11-14 [patent_title] => Resonator and filter [patent_app_type] => utility [patent_app_number] => 16/970042 [patent_app_country] => US [patent_app_date] => 2018-12-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 10 [patent_no_of_words] => 4802 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 231 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16970042 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/970042
Resonator and filter Dec 26, 2018 Issued
Array ( [id] => 19042700 [patent_doc_number] => 11931776 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-03-19 [patent_title] => Actuator, method for manufacturing the actuator, and acoustic transmitter [patent_app_type] => utility [patent_app_number] => 16/232176 [patent_app_country] => US [patent_app_date] => 2018-12-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 3755 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [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] => 16232176 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/232176
Actuator, method for manufacturing the actuator, and acoustic transmitter Dec 25, 2018 Issued
Array ( [id] => 15688613 [patent_doc_number] => 20200098970 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-03-26 [patent_title] => COMPOSITE PIEZOELECTRIC ACTUATOR [patent_app_type] => utility [patent_app_number] => 16/217951 [patent_app_country] => US [patent_app_date] => 2018-12-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7046 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 151 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16217951 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/217951
Composite piezoelectric actuator Dec 11, 2018 Issued
Array ( [id] => 17470329 [patent_doc_number] => 11276812 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-03-15 [patent_title] => Piezoelectric member [patent_app_type] => utility [patent_app_number] => 16/209190 [patent_app_country] => US [patent_app_date] => 2018-12-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 5798 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 166 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16209190 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/209190
Piezoelectric member Dec 3, 2018 Issued
Array ( [id] => 14415211 [patent_doc_number] => 20190173449 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-06-06 [patent_title] => ALTERNATIVE TEMPERATURE COMPENSATING MATERIALS TO AMORPHOUS SILICA IN ACOUSTIC WAVE RESONATORS [patent_app_type] => utility [patent_app_number] => 16/203813 [patent_app_country] => US [patent_app_date] => 2018-11-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7078 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 61 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16203813 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/203813
Alternative temperature compensating materials to amorphous silica in acoustic wave resonators Nov 28, 2018 Issued
Array ( [id] => 15896247 [patent_doc_number] => 20200147642 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-05-14 [patent_title] => MULTI-FREQUENCY HYBRID PIEZO ACTUATION AND CAPACTIVE TRANSDUCER [patent_app_type] => utility [patent_app_number] => 16/186072 [patent_app_country] => US [patent_app_date] => 2018-11-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14225 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -39 [patent_words_short_claim] => 64 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16186072 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/186072
Multi-frequency hybrid piezo actuation and capactive transducer Nov 8, 2018 Issued
Array ( [id] => 14285749 [patent_doc_number] => 20190140159 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-05-09 [patent_title] => DEFORMABLE HETEROSTRUCTURES, ELECTRONIC DEVICES INCORPORATING THE SAME, AND METHODS OF MAKING THE SAME [patent_app_type] => utility [patent_app_number] => 16/181603 [patent_app_country] => US [patent_app_date] => 2018-11-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4434 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 16181603 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/181603
Deformable heterostructures, electronic devices incorporating the same, and methods of making the same Nov 5, 2018 Issued
Array ( [id] => 15261231 [patent_doc_number] => 20190379349 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-12-12 [patent_title] => ACOUSTIC RESONATOR PACKAGE AND METHOD OF FABRICATING THE SAME [patent_app_type] => utility [patent_app_number] => 16/177758 [patent_app_country] => US [patent_app_date] => 2018-11-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10789 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 16177758 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/177758
Acoustic resonator package and method of fabricating the same Oct 31, 2018 Issued
Array ( [id] => 14239561 [patent_doc_number] => 20190131953 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-05-02 [patent_title] => INTERDIGITAL TRANSDUCERS ON A PIEZOELECTRIC THIN-FILM FOR SIGNAL COMPRESSION [patent_app_type] => utility [patent_app_number] => 16/175439 [patent_app_country] => US [patent_app_date] => 2018-10-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13775 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -22 [patent_words_short_claim] => 161 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16175439 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/175439
Interdigital transducers on a piezoelectric thin-film for signal compression Oct 29, 2018 Issued
Array ( [id] => 14239561 [patent_doc_number] => 20190131953 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-05-02 [patent_title] => INTERDIGITAL TRANSDUCERS ON A PIEZOELECTRIC THIN-FILM FOR SIGNAL COMPRESSION [patent_app_type] => utility [patent_app_number] => 16/175439 [patent_app_country] => US [patent_app_date] => 2018-10-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13775 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -22 [patent_words_short_claim] => 161 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16175439 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/175439
Interdigital transducers on a piezoelectric thin-film for signal compression Oct 29, 2018 Issued
Array ( [id] => 16782028 [patent_doc_number] => 20210119107 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-04-22 [patent_title] => SENSOR ELECTRIC WIRE AND SENSOR CIRCUIT [patent_app_type] => utility [patent_app_number] => 17/255230 [patent_app_country] => US [patent_app_date] => 2018-10-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10936 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 61 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17255230 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/255230
Sensor electric wire and sensor circuit Oct 28, 2018 Issued
Array ( [id] => 13996793 [patent_doc_number] => 20190067554 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-02-28 [patent_title] => ELECTROMECHANICAL ACTUATOR [patent_app_type] => utility [patent_app_number] => 16/171575 [patent_app_country] => US [patent_app_date] => 2018-10-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8167 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 85 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16171575 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/171575
Electromechanical actuator Oct 25, 2018 Issued
Array ( [id] => 16741780 [patent_doc_number] => 10966744 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-04-06 [patent_title] => Ultrasonic surgical instrument with piezoelectric central lumen transducer [patent_app_type] => utility [patent_app_number] => 16/170788 [patent_app_country] => US [patent_app_date] => 2018-10-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 24 [patent_figures_cnt] => 32 [patent_no_of_words] => 24787 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 202 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16170788 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/170788
Ultrasonic surgical instrument with piezoelectric central lumen transducer Oct 24, 2018 Issued
Array ( [id] => 15842285 [patent_doc_number] => 20200136425 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-04-30 [patent_title] => WIRELESS COMMUNICATION SYSTEM AND METHOD POWERED BY AN ENERGY HARVESTER [patent_app_type] => utility [patent_app_number] => 16/169029 [patent_app_country] => US [patent_app_date] => 2018-10-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3337 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 87 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16169029 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/169029
WIRELESS COMMUNICATION SYSTEM AND METHOD POWERED BY AN ENERGY HARVESTER Oct 23, 2018 Abandoned
Array ( [id] => 15767377 [patent_doc_number] => 20200114706 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-04-16 [patent_title] => ROTATING WHEEL AND AN ENERGY HARVESTING SYSTEM [patent_app_type] => utility [patent_app_number] => 16/158216 [patent_app_country] => US [patent_app_date] => 2018-10-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5213 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 41 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16158216 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/158216
Rotating wheel and an energy harvesting system Oct 10, 2018 Issued
Array ( [id] => 17696291 [patent_doc_number] => 11369994 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-06-28 [patent_title] => MEMS-switched ultrasonic transducer array with improved reliability [patent_app_type] => utility [patent_app_number] => 16/153024 [patent_app_country] => US [patent_app_date] => 2018-10-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 7048 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 140 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16153024 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/153024
MEMS-switched ultrasonic transducer array with improved reliability Oct 4, 2018 Issued
Array ( [id] => 13880247 [patent_doc_number] => 20190036464 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-01-31 [patent_title] => Flexible and Soft Smart Driving Device [patent_app_type] => utility [patent_app_number] => 16/152245 [patent_app_country] => US [patent_app_date] => 2018-10-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7370 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [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] => 16152245 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/152245
Flexible and soft smart driving device Oct 3, 2018 Issued
Array ( [id] => 13910507 [patent_doc_number] => 20190044458 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-02-07 [patent_title] => CANTILEVER PIEZOELECTRIC TRANSDUCER [patent_app_type] => utility [patent_app_number] => 16/152076 [patent_app_country] => US [patent_app_date] => 2018-10-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4167 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 130 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16152076 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/152076
Cantilever piezoelectric transducer Oct 3, 2018 Issued
Array ( [id] => 15719295 [patent_doc_number] => 20200106415 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-04-02 [patent_title] => ULTRA HIGH FREQUENCY AND TUNABLE CARBON NANOTUBE RESONATOR [patent_app_type] => utility [patent_app_number] => 16/147355 [patent_app_country] => US [patent_app_date] => 2018-09-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3105 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [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] => 16147355 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/147355
Ultra high frequency and tunable carbon nanotube resonator Sep 27, 2018 Issued
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