David H Malzahn

Array ( [id] => 6499100 [patent_doc_number] => 20100260344 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-10-14 [patent_title] => 'Method and Arrangement for Echo Cancellation of Voice Signals' [patent_app_type] => utility [patent_app_number] => 12/744733 [patent_app_country] => US [patent_app_date] => 2007-11-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 5704 [patent_no_of_claims] => 27 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0260/20100260344.pdf [firstpage_image] =>[orig_patent_app_number] => 12744733 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 4791142 [patent_doc_number] => 20080292115 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-11-27 [patent_title] => 'APPARATUS AND METHOD FOR ADJUSTING SOUND VOLUME' [patent_app_type] => utility [patent_app_number] => 11/875957 [patent_app_country] => US [patent_app_date] => 2007-10-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2296 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0292/20080292115.pdf [firstpage_image] =>[orig_patent_app_number] => 11875957 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 5584549 [patent_doc_number] => 20090103751 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-04-23 [patent_title] => 'SOUND VOLUME LEVELER FOR SPEED SENSITIVE VOLUME' [patent_app_type] => utility [patent_app_number] => 11/876287 [patent_app_country] => US [patent_app_date] => 2007-10-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 2268 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0103/20090103751.pdf [firstpage_image] =>[orig_patent_app_number] => 11876287 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 8561258 [patent_doc_number] => 08335326 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-12-18 [patent_title] => 'Communication method for vacuum tube replacement devices' [patent_app_type] => utility [patent_app_number] => 11/876720 [patent_app_country] => US [patent_app_date] => 2007-10-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 17 [patent_no_of_words] => 14249 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 159 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 11876720 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 5584537 [patent_doc_number] => 20090103739 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-04-23 [patent_title] => 'Method and Apparatus to Facilitate Use of Background Noise When Providing Secure Access to Equipment' [patent_app_type] => utility [patent_app_number] => 11/873555 [patent_app_country] => US [patent_app_date] => 2007-10-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 4993 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0103/20090103739.pdf [firstpage_image] =>[orig_patent_app_number] => 11873555 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 4697276 [patent_doc_number] => 20080219460 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-09-11 [patent_title] => 'Bug detector' [patent_app_type] => utility [patent_app_number] => 11/878962 [patent_app_country] => US [patent_app_date] => 2007-07-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 2358 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0219/20080219460.pdf [firstpage_image] =>[orig_patent_app_number] => 11878962 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 4656683 [patent_doc_number] => 20080025544 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-01-31 [patent_title] => 'Portable cooler and audio console' [patent_app_type] => utility [patent_app_number] => 11/881927 [patent_app_country] => US [patent_app_date] => 2007-07-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 6188 [patent_no_of_claims] => 32 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0025/20080025544.pdf [firstpage_image] =>[orig_patent_app_number] => 11881927 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 4656658 [patent_doc_number] => 20080025519 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-01-31 [patent_title] => 'Binaural rendering using subband filters' [patent_app_type] => utility [patent_app_number] => 11/881435 [patent_app_country] => US [patent_app_date] => 2007-07-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 6298 [patent_no_of_claims] => 1 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0025/20080025519.pdf [firstpage_image] =>[orig_patent_app_number] => 11881435 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 4656670 [patent_doc_number] => 20080025531 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-01-31 [patent_title] => 'Microphone amplifier' [patent_app_type] => utility [patent_app_number] => 11/878440 [patent_app_country] => US [patent_app_date] => 2007-07-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 1516 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0025/20080025531.pdf [firstpage_image] =>[orig_patent_app_number] => 11878440 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 8272130 [patent_doc_number] => 08213640 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-07-03 [patent_title] => 'Hearing device for musicians' [patent_app_type] => utility [patent_app_number] => 11/880845 [patent_app_country] => US [patent_app_date] => 2007-07-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 3 [patent_no_of_words] => 2023 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 133 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 11880845 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 4956083 [patent_doc_number] => 20080189107 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-08-07 [patent_title] => 'Estimating own-voice activity in a hearing-instrument system from direct-to-reverberant ratio' [patent_app_type] => utility [patent_app_number] => 11/878275 [patent_app_country] => US [patent_app_date] => 2007-07-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 2129 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0189/20080189107.pdf [firstpage_image] =>[orig_patent_app_number] => 11878275 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 5270385 [patent_doc_number] => 20090074161 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-03-19 [patent_title] => 'TELEPHONE DEVICE' [patent_app_type] => utility [patent_app_number] => 12/281512 [patent_app_country] => US [patent_app_date] => 2007-05-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 5726 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0074/20090074161.pdf [firstpage_image] =>[orig_patent_app_number] => 12281512 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 4838833 [patent_doc_number] => 20080279318 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-11-13 [patent_title] => 'Combined multirate-based and fir-based filtering technique for room acoustic equalization' [patent_app_type] => utility [patent_app_number] => 11/801876 [patent_app_country] => US [patent_app_date] => 2007-05-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 4298 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0279/20080279318.pdf [firstpage_image] =>[orig_patent_app_number] => 11801876 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 4832368 [patent_doc_number] => 20080130914 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-06-05 [patent_title] => 'Noise reduction system and method' [patent_app_type] => utility [patent_app_number] => 11/790206 [patent_app_country] => US [patent_app_date] => 2007-04-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 7279 [patent_no_of_claims] => 33 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0130/20080130914.pdf [firstpage_image] =>[orig_patent_app_number] => 11790206 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 5010011 [patent_doc_number] => 20070280489 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-12-06 [patent_title] => 'DOCKING SYSTEM AND MIXER FOR PORTABLE MEDIA DEVICES WITH GRAPHICAL INTERFACE' [patent_app_type] => utility [patent_app_number] => 11/691582 [patent_app_country] => US [patent_app_date] => 2007-03-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 17 [patent_no_of_words] => 8413 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0280/20070280489.pdf [firstpage_image] =>[orig_patent_app_number] => 11691582 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 9011317 [patent_doc_number] => 08526631 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2013-09-03 [patent_title] => 'Audio device' [patent_app_type] => utility [patent_app_number] => 12/532297 [patent_app_country] => US [patent_app_date] => 2007-03-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 5975 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 233 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12532297 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 8205621 [patent_doc_number] => 08189849 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-05-29 [patent_title] => 'Movable speaker covering' [patent_app_type] => utility [patent_app_number] => 11/685340 [patent_app_country] => US [patent_app_date] => 2007-03-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 12 [patent_no_of_words] => 6394 [patent_no_of_claims] => 22 [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] => patents/08/189/08189849.pdf [firstpage_image] =>[orig_patent_app_number] => 11685340 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 8272127 [patent_doc_number] => 08213638 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-07-03 [patent_title] => 'Equalizer' [patent_app_type] => utility [patent_app_number] => 11/708874 [patent_app_country] => US [patent_app_date] => 2007-02-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 4556 [patent_no_of_claims] => 14 [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] => 11708874 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 5112046 [patent_doc_number] => 20070195961 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-08-23 [patent_title] => 'FM transmitter' [patent_app_type] => utility [patent_app_number] => 11/707445 [patent_app_country] => US [patent_app_date] => 2007-02-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3805 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0195/20070195961.pdf [firstpage_image] =>[orig_patent_app_number] => 11707445 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 5062101 [patent_doc_number] => 20070223740 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-09-27 [patent_title] => 'Audio spatial environment engine using a single fine structure' [patent_app_type] => utility [patent_app_number] => 11/705219 [patent_app_country] => US [patent_app_date] => 2007-02-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 16 [patent_no_of_words] => 10956 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0223/20070223740.pdf [firstpage_image] =>[orig_patent_app_number] => 11705219 [rel_patent_id] =>[rel_patent_doc_number] =>)