Search

David H Malzahn

Examiner (ID: 9212, Phone: (571)272-3727 , Office: P/2182 )

Most Active Art Unit
2193
Art Unit(s)
2787, 2124, 2301, 2182, 2302, 2306, 2307, 2121, 2193, 2183, 2786
Total Applications
3174
Issued Applications
2742
Pending Applications
60
Abandoned Applications
371

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 6499083 [patent_doc_number] => 20100260343 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-10-14 [patent_title] => 'System for estimating sound pressure levels at the tympanic membrane using pressure-minima based distance' [patent_app_type] => utility [patent_app_number] => 12/537908 [patent_app_country] => US [patent_app_date] => 2009-08-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 23 [patent_figures_cnt] => 23 [patent_no_of_words] => 6988 [patent_no_of_claims] => 20 [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/A1/0260/20100260343.pdf [firstpage_image] =>[orig_patent_app_number] => 12537908 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/537908
System for estimating sound pressure levels at the tympanic membrane using pressure-minima based distance Aug 6, 2009 Issued
Array ( [id] => 6407281 [patent_doc_number] => 20100166197 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-07-01 [patent_title] => 'SOUND CORRECTOR, SOUND MEASUREMENT DEVICE, SOUND REPRODUCER, SOUND CORRECTION METHOD, AND SOUND MEASUREMENT METHOD' [patent_app_type] => utility [patent_app_number] => 12/535382 [patent_app_country] => US [patent_app_date] => 2009-08-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 16 [patent_no_of_words] => 7997 [patent_no_of_claims] => 14 [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/A1/0166/20100166197.pdf [firstpage_image] =>[orig_patent_app_number] => 12535382 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/535382
Sound corrector, sound measurement device, sound reproducer, sound correction method, and sound measurement method Aug 3, 2009 Issued
Array ( [id] => 5302302 [patent_doc_number] => 20090296954 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-12-03 [patent_title] => 'Method and apparatus to direct sound' [patent_app_type] => utility [patent_app_number] => 12/533362 [patent_app_country] => US [patent_app_date] => 2009-07-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 23 [patent_figures_cnt] => 23 [patent_no_of_words] => 36715 [patent_no_of_claims] => 28 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0296/20090296954.pdf [firstpage_image] =>[orig_patent_app_number] => 12533362 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/533362
Method and apparatus to shape sound Jul 30, 2009 Issued
Array ( [id] => 5494939 [patent_doc_number] => 20090262967 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-10-22 [patent_title] => 'WEARABLE SPEAKER VEST/JACKET' [patent_app_type] => utility [patent_app_number] => 12/488473 [patent_app_country] => US [patent_app_date] => 2009-06-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 19 [patent_figures_cnt] => 19 [patent_no_of_words] => 3741 [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/A1/0262/20090262967.pdf [firstpage_image] =>[orig_patent_app_number] => 12488473 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/488473
WEARABLE SPEAKER VEST/JACKET Jun 18, 2009 Abandoned
Array ( [id] => 5557315 [patent_doc_number] => 20090268892 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-10-29 [patent_title] => 'COMMUNICATION TERMINAL AND METHOD FOR PROVIDING COMMUNICATING STATUSES OF PHONE NUMBERS IN ELECTRONIC PHONEBOOK THEREOF' [patent_app_type] => utility [patent_app_number] => 12/430907 [patent_app_country] => US [patent_app_date] => 2009-04-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 1070 [patent_no_of_claims] => 19 [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/A1/0268/20090268892.pdf [firstpage_image] =>[orig_patent_app_number] => 12430907 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/430907
COMMUNICATION TERMINAL AND METHOD FOR PROVIDING COMMUNICATING STATUSES OF PHONE NUMBERS IN ELECTRONIC PHONEBOOK THEREOF Apr 27, 2009 Abandoned
Array ( [id] => 6499234 [patent_doc_number] => 20100260356 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-10-14 [patent_title] => 'BAND-SPLITTING TIME COMPENSATION SIGNAL PROCESSING DEVICE' [patent_app_type] => utility [patent_app_number] => 12/744238 [patent_app_country] => US [patent_app_date] => 2008-11-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 4523 [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/A1/0260/20100260356.pdf [firstpage_image] =>[orig_patent_app_number] => 12744238 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/744238
Band-splitting time compensation signal processing device Nov 17, 2008 Issued
Array ( [id] => 6569106 [patent_doc_number] => 20100128897 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-05-27 [patent_title] => 'SIGNAL PROCESSING DEVICE' [patent_app_type] => utility [patent_app_number] => 12/593928 [patent_app_country] => US [patent_app_date] => 2008-03-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 9506 [patent_no_of_claims] => 9 [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/A1/0128/20100128897.pdf [firstpage_image] =>[orig_patent_app_number] => 12593928 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/593928
Signal processing apparatus Mar 25, 2008 Issued
Array ( [id] => 7802704 [patent_doc_number] => 08130981 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-03-06 [patent_title] => 'Sound card having feedback calibration loop' [patent_app_type] => utility [patent_app_number] => 12/054494 [patent_app_country] => US [patent_app_date] => 2008-03-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3426 [patent_no_of_claims] => 27 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 123 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/130/08130981.pdf [firstpage_image] =>[orig_patent_app_number] => 12054494 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/054494
Sound card having feedback calibration loop Mar 24, 2008 Issued
Array ( [id] => 6311988 [patent_doc_number] => 20100111318 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-05-06 [patent_title] => 'ACTIVE NOISE CONTROLLER' [patent_app_type] => utility [patent_app_number] => 12/532498 [patent_app_country] => US [patent_app_date] => 2008-03-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 4769 [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/A1/0111/20100111318.pdf [firstpage_image] =>[orig_patent_app_number] => 12532498 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/532498
ACTIVE NOISE CONTROLLER Mar 24, 2008 Abandoned
Array ( [id] => 4697282 [patent_doc_number] => 20080219466 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-09-11 [patent_title] => 'Low bit-rate universal audio coder' [patent_app_type] => utility [patent_app_number] => 12/073660 [patent_app_country] => US [patent_app_date] => 2008-03-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 8993 [patent_no_of_claims] => 28 [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/A1/0219/20080219466.pdf [firstpage_image] =>[orig_patent_app_number] => 12073660 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/073660
Low bit-rate universal audio coder Mar 6, 2008 Abandoned
Array ( [id] => 4697278 [patent_doc_number] => 20080219462 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-09-11 [patent_title] => 'Device and method for shaping a digital audio signal' [patent_app_type] => utility [patent_app_number] => 12/074759 [patent_app_country] => US [patent_app_date] => 2008-03-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2497 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 15 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0219/20080219462.pdf [firstpage_image] =>[orig_patent_app_number] => 12074759 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/074759
Device and method for shaping a digital audio signal Mar 5, 2008 Abandoned
Array ( [id] => 6234040 [patent_doc_number] => 20100266138 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-10-21 [patent_title] => 'Device and method for active sound damping in a closed interior space' [patent_app_type] => utility [patent_app_number] => 12/073464 [patent_app_country] => US [patent_app_date] => 2008-03-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 3071 [patent_no_of_claims] => 5 [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/A1/0266/20100266138.pdf [firstpage_image] =>[orig_patent_app_number] => 12073464 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/073464
Device and method for active sound damping in a closed interior space Mar 4, 2008 Abandoned
Array ( [id] => 4697286 [patent_doc_number] => 20080219470 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-09-11 [patent_title] => 'Signal processing apparatus, signal processing method, and program recording medium' [patent_app_type] => utility [patent_app_number] => 12/074687 [patent_app_country] => US [patent_app_date] => 2008-03-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 21 [patent_figures_cnt] => 21 [patent_no_of_words] => 20470 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 12 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0219/20080219470.pdf [firstpage_image] =>[orig_patent_app_number] => 12074687 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/074687
Signal processing apparatus, signal processing method, and program recording medium Mar 4, 2008 Abandoned
Array ( [id] => 5384755 [patent_doc_number] => 20090225999 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-09-10 [patent_title] => 'Method for cancelling TDD noise and stereo headphone employing the same' [patent_app_type] => utility [patent_app_number] => 12/073395 [patent_app_country] => US [patent_app_date] => 2008-03-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2227 [patent_no_of_claims] => 10 [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/A1/0225/20090225999.pdf [firstpage_image] =>[orig_patent_app_number] => 12073395 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/073395
Method for cancelling TDD noise and stereo headphone employing the same Mar 4, 2008 Abandoned
Array ( [id] => 9011316 [patent_doc_number] => 08526630 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2013-09-03 [patent_title] => 'Active sound control apparatus' [patent_app_type] => utility [patent_app_number] => 12/041990 [patent_app_country] => US [patent_app_date] => 2008-03-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 26 [patent_no_of_words] => 8306 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 108 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12041990 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/041990
Active sound control apparatus Mar 3, 2008 Issued
Array ( [id] => 5538299 [patent_doc_number] => 20090220104 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-09-03 [patent_title] => 'Venue private network' [patent_app_type] => utility [patent_app_number] => 12/074319 [patent_app_country] => US [patent_app_date] => 2008-03-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 4382 [patent_no_of_claims] => 44 [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/A1/0220/20090220104.pdf [firstpage_image] =>[orig_patent_app_number] => 12074319 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/074319
Venue private network Mar 2, 2008 Abandoned
Array ( [id] => 4751488 [patent_doc_number] => 20080159559 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-07-03 [patent_title] => 'Post-filter for microphone array' [patent_app_type] => utility [patent_app_number] => 12/074085 [patent_app_country] => US [patent_app_date] => 2008-02-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 7965 [patent_no_of_claims] => 6 [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/A1/0159/20080159559.pdf [firstpage_image] =>[orig_patent_app_number] => 12074085 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/074085
Post-filter for microphone array Feb 28, 2008 Abandoned
Array ( [id] => 4823942 [patent_doc_number] => 20080123885 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-05-29 [patent_title] => 'FEEDBACK COMPENSATION METHOD AND CIRCUIT FOR AN ACOUSTIC AMPLIFICATION SYSTEM, AND HEARING AID DEVICE EMPLOYING SAME' [patent_app_type] => utility [patent_app_number] => 12/028259 [patent_app_country] => US [patent_app_date] => 2008-02-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 4859 [patent_no_of_claims] => 69 [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/A1/0123/20080123885.pdf [firstpage_image] =>[orig_patent_app_number] => 12028259 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/028259
FEEDBACK COMPENSATION METHOD AND CIRCUIT FOR AN ACOUSTIC AMPLIFICATION SYSTEM, AND HEARING AID DEVICE EMPLOYING SAME Feb 7, 2008 Abandoned
Array ( [id] => 7681473 [patent_doc_number] => 20100023335 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-01-28 [patent_title] => 'LOW COMPLEXITY PARAMETRIC STEREO DECODER' [patent_app_type] => utility [patent_app_number] => 12/525772 [patent_app_country] => US [patent_app_date] => 2008-02-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 5876 [patent_no_of_claims] => 24 [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/A1/0023/20100023335.pdf [firstpage_image] =>[orig_patent_app_number] => 12525772 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/525772
Low complexity parametric stereo decoder Feb 3, 2008 Issued
Array ( [id] => 7754740 [patent_doc_number] => 08111854 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-02-07 [patent_title] => 'Methods and apparatus for sound production' [patent_app_type] => utility [patent_app_number] => 12/003560 [patent_app_country] => US [patent_app_date] => 2007-12-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 9 [patent_no_of_words] => 4488 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 138 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/111/08111854.pdf [firstpage_image] =>[orig_patent_app_number] => 12003560 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/003560
Methods and apparatus for sound production Dec 27, 2007 Issued
Menu