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] => 2069697 [patent_doc_number] => 04441185 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1984-04-03 [patent_title] => 'Monitoring method and device for a PCM regenerator having a code rule violation checking device' [patent_app_type] => 1 [patent_app_number] => 6/285547 [patent_app_country] => US [patent_app_date] => 1981-07-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 4618 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 334 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/441/04441185.pdf [firstpage_image] =>[orig_patent_app_number] => 285547 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/285547
Monitoring method and device for a PCM regenerator having a code rule violation checking device Jul 20, 1981 Issued
Array ( [id] => 2056665 [patent_doc_number] => 04417315 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-11-22 [patent_title] => 'Method and apparatus for incrementing a digital word' [patent_app_type] => 1 [patent_app_number] => 6/283305 [patent_app_country] => US [patent_app_date] => 1981-07-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 3 [patent_no_of_words] => 2175 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 8 [patent_words_short_claim] => 54 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/417/04417315.pdf [firstpage_image] =>[orig_patent_app_number] => 283305 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/283305
Method and apparatus for incrementing a digital word Jul 13, 1981 Issued
Array ( [id] => 2056673 [patent_doc_number] => 04417316 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-11-22 [patent_title] => 'Digital binary increment circuit apparatus' [patent_app_type] => 1 [patent_app_number] => 6/283267 [patent_app_country] => US [patent_app_date] => 1981-07-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 1700 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 260 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/417/04417316.pdf [firstpage_image] =>[orig_patent_app_number] => 283267 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/283267
Digital binary increment circuit apparatus Jul 13, 1981 Issued
Array ( [id] => 2119001 [patent_doc_number] => 04439835 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1984-03-27 [patent_title] => 'Apparatus for and method of generation of ripple carry signals in conjunction with logical adding circuitry' [patent_app_type] => 1 [patent_app_number] => 6/283266 [patent_app_country] => US [patent_app_date] => 1981-07-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 4 [patent_no_of_words] => 1135 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 66 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/439/04439835.pdf [firstpage_image] =>[orig_patent_app_number] => 283266 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/283266
Apparatus for and method of generation of ripple carry signals in conjunction with logical adding circuitry Jul 13, 1981 Issued
Array ( [id] => 2056656 [patent_doc_number] => 04417314 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-11-22 [patent_title] => 'Parallel operating mode arithmetic logic unit apparatus' [patent_app_type] => 1 [patent_app_number] => 6/283263 [patent_app_country] => US [patent_app_date] => 1981-07-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 2620 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 73 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/417/04417314.pdf [firstpage_image] =>[orig_patent_app_number] => 283263 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/283263
Parallel operating mode arithmetic logic unit apparatus Jul 13, 1981 Issued
Array ( [id] => 2132629 [patent_doc_number] => 04432066 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1984-02-14 [patent_title] => 'Multiplier for binary numbers in two\'s-complement notation' [patent_app_type] => 1 [patent_app_number] => 6/282887 [patent_app_country] => US [patent_app_date] => 1981-07-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 21 [patent_no_of_words] => 10378 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 712 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/432/04432066.pdf [firstpage_image] =>[orig_patent_app_number] => 282887 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/282887
Multiplier for binary numbers in two's-complement notation Jul 12, 1981 Issued
Array ( [id] => 2074973 [patent_doc_number] => 04479191 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1984-10-23 [patent_title] => 'Integrated circuit with interruptable oscillator circuit' [patent_app_type] => 1 [patent_app_number] => 6/283015 [patent_app_country] => US [patent_app_date] => 1981-07-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 8 [patent_no_of_words] => 3542 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 160 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/479/04479191.pdf [firstpage_image] =>[orig_patent_app_number] => 283015 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/283015
Integrated circuit with interruptable oscillator circuit Jul 12, 1981 Issued
Array ( [id] => 2118771 [patent_doc_number] => 04437165 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1984-03-13 [patent_title] => 'Overflow detection for a decimal arithmetic unit' [patent_app_type] => 1 [patent_app_number] => 6/282167 [patent_app_country] => US [patent_app_date] => 1981-07-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 2146 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 154 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/437/04437165.pdf [firstpage_image] =>[orig_patent_app_number] => 282167 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/282167
Overflow detection for a decimal arithmetic unit Jul 9, 1981 Issued
Array ( [id] => 2118985 [patent_doc_number] => 04437184 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1984-03-13 [patent_title] => 'Method of testing a data communication system' [patent_app_type] => 1 [patent_app_number] => 6/281814 [patent_app_country] => US [patent_app_date] => 1981-07-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 7 [patent_no_of_words] => 4714 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 215 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/437/04437184.pdf [firstpage_image] =>[orig_patent_app_number] => 281814 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/281814
Method of testing a data communication system Jul 8, 1981 Issued
Array ( [id] => 2069379 [patent_doc_number] => 04441159 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1984-04-03 [patent_title] => 'Digital adder circuit for binary-coded numbers of radix other than a power of two' [patent_app_type] => 1 [patent_app_number] => 6/281300 [patent_app_country] => US [patent_app_date] => 1981-07-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 7 [patent_no_of_words] => 2448 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 129 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/441/04441159.pdf [firstpage_image] =>[orig_patent_app_number] => 281300 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/281300
Digital adder circuit for binary-coded numbers of radix other than a power of two Jul 6, 1981 Issued
Array ( [id] => 2097404 [patent_doc_number] => 04443859 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1984-04-17 [patent_title] => 'Speech analysis circuits using an inverse lattice network' [patent_app_type] => 1 [patent_app_number] => 6/280742 [patent_app_country] => US [patent_app_date] => 1981-07-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 13 [patent_no_of_words] => 6214 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 558 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/443/04443859.pdf [firstpage_image] =>[orig_patent_app_number] => 280742 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/280742
Speech analysis circuits using an inverse lattice network Jul 5, 1981 Issued
Array ( [id] => 2109245 [patent_doc_number] => 04473886 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1984-09-25 [patent_title] => 'Data processing apparatus with algebraic memory operation and entry sequence' [patent_app_type] => 1 [patent_app_number] => 6/280640 [patent_app_country] => US [patent_app_date] => 1981-07-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 5595 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 258 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/473/04473886.pdf [firstpage_image] =>[orig_patent_app_number] => 280640 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/280640
Data processing apparatus with algebraic memory operation and entry sequence Jul 5, 1981 Issued
Array ( [id] => 2113384 [patent_doc_number] => 04467440 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1984-08-21 [patent_title] => 'Digital filter apparatus with resonance characteristics' [patent_app_type] => 1 [patent_app_number] => 6/279630 [patent_app_country] => US [patent_app_date] => 1981-07-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 18 [patent_no_of_words] => 7054 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 8 [patent_words_short_claim] => 80 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/467/04467440.pdf [firstpage_image] =>[orig_patent_app_number] => 279630 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/279630
Digital filter apparatus with resonance characteristics Jun 30, 1981 Issued
Array ( [id] => 2113374 [patent_doc_number] => 04467439 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1984-08-21 [patent_title] => 'OR Product term function in the search array of a PLA' [patent_app_type] => 1 [patent_app_number] => 6/280418 [patent_app_country] => US [patent_app_date] => 1981-06-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 5192 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 139 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/467/04467439.pdf [firstpage_image] =>[orig_patent_app_number] => 280418 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/280418
OR Product term function in the search array of a PLA Jun 29, 1981 Issued
Array ( [id] => 2056898 [patent_doc_number] => 04417337 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-11-22 [patent_title] => 'Adaptive multitone transmission parameter test arrangement' [patent_app_type] => 1 [patent_app_number] => 6/278884 [patent_app_country] => US [patent_app_date] => 1981-06-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 18 [patent_no_of_words] => 12853 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 215 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/417/04417337.pdf [firstpage_image] =>[orig_patent_app_number] => 278884 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/278884
Adaptive multitone transmission parameter test arrangement Jun 28, 1981 Issued
Array ( [id] => 2041611 [patent_doc_number] => 04410983 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-10-18 [patent_title] => 'Distributed industrial control system with remote stations taking turns supervising communications link between the remote stations' [patent_app_type] => 1 [patent_app_number] => 6/277646 [patent_app_country] => US [patent_app_date] => 1981-06-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 20 [patent_no_of_words] => 6262 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 234 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/410/04410983.pdf [firstpage_image] =>[orig_patent_app_number] => 277646 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/277646
Distributed industrial control system with remote stations taking turns supervising communications link between the remote stations Jun 25, 1981 Issued
06/277614 DYNAMIC MEMORY WITH ERROR CORRECTION OF REFRESH Jun 25, 1981 Abandoned
Array ( [id] => 2089479 [patent_doc_number] => 04435767 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1984-03-06 [patent_title] => 'Error alarm system for detecting an abnormal condition in a peripheral system of an electronic cash register' [patent_app_type] => 1 [patent_app_number] => 6/277687 [patent_app_country] => US [patent_app_date] => 1981-06-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 2144 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 278 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/435/04435767.pdf [firstpage_image] =>[orig_patent_app_number] => 277687 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/277687
Error alarm system for detecting an abnormal condition in a peripheral system of an electronic cash register Jun 25, 1981 Issued
06/276767 MULTI-CHANNEL TEST SYSTEM Jun 23, 1981 Abandoned
Array ( [id] => 2044328 [patent_doc_number] => 04418332 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1983-11-29 [patent_title] => 'Noise insensitive comparator' [patent_app_type] => 1 [patent_app_number] => 6/276967 [patent_app_country] => US [patent_app_date] => 1981-06-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 6 [patent_no_of_words] => 4369 [patent_no_of_claims] => 25 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 75 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/418/04418332.pdf [firstpage_image] =>[orig_patent_app_number] => 276967 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/276967
Noise insensitive comparator Jun 23, 1981 Issued
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