Search

David H. Malzahn

Examiner (ID: 17134, Phone: (571)272-3727 , Office: P/2182 )

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

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 2017990 [patent_doc_number] => 04369500 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-01-18 [patent_title] => 'High speed NXM bit digital, repeated addition type multiplying circuit' [patent_app_type] => 1 [patent_app_number] => 6/198688 [patent_app_country] => US [patent_app_date] => 1980-10-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 10 [patent_no_of_words] => 5894 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 171 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/369/04369500.pdf [firstpage_image] =>[orig_patent_app_number] => 198688 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/198688
High speed NXM bit digital, repeated addition type multiplying circuit Oct 19, 1980 Issued
Array ( [id] => 1987444 [patent_doc_number] => 04357703 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1982-11-02 [patent_title] => 'Test system for LSI circuits resident on LSI chips' [patent_app_type] => 1 [patent_app_number] => 6/195697 [patent_app_country] => US [patent_app_date] => 1980-10-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 3417 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 318 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/357/04357703.pdf [firstpage_image] =>[orig_patent_app_number] => 195697 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/195697
Test system for LSI circuits resident on LSI chips Oct 8, 1980 Issued
Array ( [id] => 2041352 [patent_doc_number] => 04410954 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-10-18 [patent_title] => 'Digital frequency synthesizer with random jittering for reducing discrete spectral spurs' [patent_app_type] => 1 [patent_app_number] => 6/195274 [patent_app_country] => US [patent_app_date] => 1980-10-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 7 [patent_no_of_words] => 3774 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 113 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/410/04410954.pdf [firstpage_image] =>[orig_patent_app_number] => 195274 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/195274
Digital frequency synthesizer with random jittering for reducing discrete spectral spurs Oct 7, 1980 Issued
Array ( [id] => 2008422 [patent_doc_number] => 04402081 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-08-30 [patent_title] => 'Semiconductor memory test pattern generating apparatus' [patent_app_type] => 1 [patent_app_number] => 6/195079 [patent_app_country] => US [patent_app_date] => 1980-10-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 5849 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 611 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/402/04402081.pdf [firstpage_image] =>[orig_patent_app_number] => 195079 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/195079
Semiconductor memory test pattern generating apparatus Oct 7, 1980 Issued
Array ( [id] => 2045294 [patent_doc_number] => 04383304 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-05-10 [patent_title] => 'Programmable bit shift circuit' [patent_app_type] => 1 [patent_app_number] => 6/194659 [patent_app_country] => US [patent_app_date] => 1980-10-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2757 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 47 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/383/04383304.pdf [firstpage_image] =>[orig_patent_app_number] => 194659 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/194659
Programmable bit shift circuit Oct 5, 1980 Issued
Array ( [id] => 1953971 [patent_doc_number] => 04355368 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1982-10-19 [patent_title] => 'Adaptive correlator' [patent_app_type] => 1 [patent_app_number] => 6/194168 [patent_app_country] => US [patent_app_date] => 1980-10-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 3619 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 78 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/355/04355368.pdf [firstpage_image] =>[orig_patent_app_number] => 194168 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/194168
Adaptive correlator Oct 5, 1980 Issued
Array ( [id] => 1976690 [patent_doc_number] => 04365309 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1982-12-21 [patent_title] => 'Digital differential analyzing processor' [patent_app_type] => 1 [patent_app_number] => 6/193445 [patent_app_country] => US [patent_app_date] => 1980-10-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 9 [patent_no_of_words] => 3601 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 271 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/365/04365309.pdf [firstpage_image] =>[orig_patent_app_number] => 193445 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/193445
Digital differential analyzing processor Oct 2, 1980 Issued
Array ( [id] => 2072499 [patent_doc_number] => 04430722 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1984-02-07 [patent_title] => 'Method and arrangement for the correlation of two signals' [patent_app_type] => 1 [patent_app_number] => 6/191351 [patent_app_country] => US [patent_app_date] => 1980-09-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 10527 [patent_no_of_claims] => 32 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 136 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/430/04430722.pdf [firstpage_image] =>[orig_patent_app_number] => 191351 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/191351
Method and arrangement for the correlation of two signals Sep 25, 1980 Issued
Array ( [id] => 1987298 [patent_doc_number] => 04357674 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1982-11-02 [patent_title] => 'PCM Signal calculator' [patent_app_type] => 1 [patent_app_number] => 6/189539 [patent_app_country] => US [patent_app_date] => 1980-09-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 20 [patent_figures_cnt] => 22 [patent_no_of_words] => 12946 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 210 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/357/04357674.pdf [firstpage_image] =>[orig_patent_app_number] => 189539 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/189539
PCM Signal calculator Sep 21, 1980 Issued
Array ( [id] => 1947847 [patent_doc_number] => 04366547 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1982-12-28 [patent_title] => 'Digital filter with scaled tap coefficients' [patent_app_type] => 1 [patent_app_number] => 6/188536 [patent_app_country] => US [patent_app_date] => 1980-09-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 11 [patent_no_of_words] => 6205 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 130 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/366/04366547.pdf [firstpage_image] =>[orig_patent_app_number] => 188536 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/188536
Digital filter with scaled tap coefficients Sep 17, 1980 Issued
Array ( [id] => 2017981 [patent_doc_number] => 04369499 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-01-18 [patent_title] => 'Linear phase digital filter' [patent_app_type] => 1 [patent_app_number] => 6/188548 [patent_app_country] => US [patent_app_date] => 1980-09-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 11 [patent_no_of_words] => 6678 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 71 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/369/04369499.pdf [firstpage_image] =>[orig_patent_app_number] => 188548 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/188548
Linear phase digital filter Sep 17, 1980 Issued
06/187770 METHOD AND APPARATUS FOR THE AUTOMATIC TESTING OF A DIGITAL DATA TRANSMISSION SYSTEM Sep 15, 1980 Abandoned
Array ( [id] => 2205646 [patent_doc_number] => 04524422 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1985-06-18 [patent_title] => 'Digital equalizer capable of varying the center frequency, quality factor, and gain to perform various frequency characteristics' [patent_app_type] => 1 [patent_app_number] => 6/187328 [patent_app_country] => US [patent_app_date] => 1980-09-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 18 [patent_no_of_words] => 6254 [patent_no_of_claims] => 1 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 589 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/524/04524422.pdf [firstpage_image] =>[orig_patent_app_number] => 187328 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/187328
Digital equalizer capable of varying the center frequency, quality factor, and gain to perform various frequency characteristics Sep 14, 1980 Issued
Array ( [id] => 1978579 [patent_doc_number] => 04361874 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1982-11-30 [patent_title] => 'Schedule table printing apparatus' [patent_app_type] => 1 [patent_app_number] => 6/185803 [patent_app_country] => US [patent_app_date] => 1980-09-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 9596 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 54 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/361/04361874.pdf [firstpage_image] =>[orig_patent_app_number] => 185803 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/185803
Schedule table printing apparatus Sep 9, 1980 Issued
Array ( [id] => 1977990 [patent_doc_number] => 04348761 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1982-09-07 [patent_title] => 'Portable field test unit for computer data and program storage disc drive' [patent_app_type] => 1 [patent_app_number] => 6/184811 [patent_app_country] => US [patent_app_date] => 1980-09-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 9 [patent_no_of_words] => 7640 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 85 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/348/04348761.pdf [firstpage_image] =>[orig_patent_app_number] => 184811 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/184811
Portable field test unit for computer data and program storage disc drive Sep 7, 1980 Issued
06/181667 PROCEDURE FOR SHARED-TIME PROCESSING OF DIGITAL SIGNALS AND APPLICATION TO A MULTIPLEXED SELF-ADAPTING ECHO CANCELER Aug 25, 1980 Abandoned
Array ( [id] => 1946897 [patent_doc_number] => 04366372 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1982-12-28 [patent_title] => 'Apparatus and method for counting repetitive marks on a running web' [patent_app_type] => 1 [patent_app_number] => 6/180360 [patent_app_country] => US [patent_app_date] => 1980-08-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 22 [patent_no_of_words] => 12211 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 50 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/366/04366372.pdf [firstpage_image] =>[orig_patent_app_number] => 180360 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/180360
Apparatus and method for counting repetitive marks on a running web Aug 21, 1980 Issued
Array ( [id] => 1963053 [patent_doc_number] => 04349887 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1982-09-14 [patent_title] => 'Precise digitally programmed frequency source' [patent_app_type] => 1 [patent_app_number] => 6/181086 [patent_app_country] => US [patent_app_date] => 1980-08-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 8 [patent_no_of_words] => 5328 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 177 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/349/04349887.pdf [firstpage_image] =>[orig_patent_app_number] => 181086 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/181086
Precise digitally programmed frequency source Aug 21, 1980 Issued
06/179188 MODULAR PROGRAMMABLE SIGNAL PROCESSOR Aug 17, 1980 Abandoned
Array ( [id] => 1947860 [patent_doc_number] => 04366549 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1982-12-28 [patent_title] => 'Multiplier with index transforms modulo a prime or modulo a fermat prime and the fermat prime less one' [patent_app_type] => 1 [patent_app_number] => 6/178676 [patent_app_country] => US [patent_app_date] => 1980-08-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 13502 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 9 [patent_words_short_claim] => 23 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/366/04366549.pdf [firstpage_image] =>[orig_patent_app_number] => 178676 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/178676
Multiplier with index transforms modulo a prime or modulo a fermat prime and the fermat prime less one Aug 14, 1980 Issued
Menu