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] => 2682555 [patent_doc_number] => 05027312 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-06-25 [patent_title] => 'Carry-select adder' [patent_app_type] => 1 [patent_app_number] => 7/380601 [patent_app_country] => US [patent_app_date] => 1989-07-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 4878 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 507 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/027/05027312.pdf [firstpage_image] =>[orig_patent_app_number] => 380601 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/380601
Carry-select adder Jul 16, 1989 Issued
Array ( [id] => 2756869 [patent_doc_number] => 05016208 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-05-14 [patent_title] => 'Deferred comparison multiplier checker' [patent_app_type] => 1 [patent_app_number] => 7/377982 [patent_app_country] => US [patent_app_date] => 1989-07-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 4369 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 130 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/016/05016208.pdf [firstpage_image] =>[orig_patent_app_number] => 377982 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/377982
Deferred comparison multiplier checker Jul 10, 1989 Issued
07/376753 METHOD AND APPARATUS FOR PERFORMING DIVISION USING A RECTANGULAR ASPECT RATIO MULTIPLIER Jul 6, 1989 Abandoned
07/370914 CHUNKY BINARY MULTIPLIER AND METHOD OF OPERATION Jun 22, 1989 Abandoned
Array ( [id] => 2721836 [patent_doc_number] => 05010506 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-04-23 [patent_title] => 'Spurious level reduction and control method for direct digital synthesizers' [patent_app_type] => 1 [patent_app_number] => 7/369414 [patent_app_country] => US [patent_app_date] => 1989-06-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 2911 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 192 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/010/05010506.pdf [firstpage_image] =>[orig_patent_app_number] => 369414 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/369414
Spurious level reduction and control method for direct digital synthesizers Jun 18, 1989 Issued
Array ( [id] => 2731403 [patent_doc_number] => 05025409 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-06-18 [patent_title] => 'Carry propagation circuit of parallel-type full adder' [patent_app_type] => 1 [patent_app_number] => 7/366541 [patent_app_country] => US [patent_app_date] => 1989-06-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 16 [patent_no_of_words] => 5179 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 52 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/025/05025409.pdf [firstpage_image] =>[orig_patent_app_number] => 366541 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/366541
Carry propagation circuit of parallel-type full adder Jun 14, 1989 Issued
Array ( [id] => 2734532 [patent_doc_number] => 05058047 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-10-15 [patent_title] => 'System and method for providing digital filter coefficients' [patent_app_type] => 1 [patent_app_number] => 7/359022 [patent_app_country] => US [patent_app_date] => 1989-05-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 5682 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 135 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/058/05058047.pdf [firstpage_image] =>[orig_patent_app_number] => 359022 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/359022
System and method for providing digital filter coefficients May 29, 1989 Issued
Array ( [id] => 2726402 [patent_doc_number] => 05008848 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-04-16 [patent_title] => 'Circuit for performing S-transform' [patent_app_type] => 1 [patent_app_number] => 7/358982 [patent_app_country] => US [patent_app_date] => 1989-05-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 17 [patent_no_of_words] => 5403 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 140 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/008/05008848.pdf [firstpage_image] =>[orig_patent_app_number] => 358982 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/358982
Circuit for performing S-transform May 29, 1989 Issued
Array ( [id] => 2652257 [patent_doc_number] => 04939686 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-07-03 [patent_title] => 'Method and apparatus for shared radix 4 division and radix 4 square root' [patent_app_type] => 1 [patent_app_number] => 7/361802 [patent_app_country] => US [patent_app_date] => 1989-05-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 7 [patent_no_of_words] => 4971 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 174 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/939/04939686.pdf [firstpage_image] =>[orig_patent_app_number] => 361802 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/361802
Method and apparatus for shared radix 4 division and radix 4 square root May 29, 1989 Issued
Array ( [id] => 2652202 [patent_doc_number] => 04939683 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-07-03 [patent_title] => 'Method and apparatus for identifying that one of a set of past or historical events best correlated with a current or recent event' [patent_app_type] => 1 [patent_app_number] => 7/355202 [patent_app_country] => US [patent_app_date] => 1989-05-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 7 [patent_no_of_words] => 6346 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 336 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/939/04939683.pdf [firstpage_image] =>[orig_patent_app_number] => 355202 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/355202
Method and apparatus for identifying that one of a set of past or historical events best correlated with a current or recent event May 18, 1989 Issued
Array ( [id] => 2757739 [patent_doc_number] => 05038315 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-08-06 [patent_title] => 'Multiplier circuit' [patent_app_type] => 1 [patent_app_number] => 7/351881 [patent_app_country] => US [patent_app_date] => 1989-05-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 3323 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 139 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/038/05038315.pdf [firstpage_image] =>[orig_patent_app_number] => 351881 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/351881
Multiplier circuit May 14, 1989 Issued
Array ( [id] => 2716436 [patent_doc_number] => 05001663 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-03-19 [patent_title] => 'Programmable digital circuit for performing a matrix multiplication' [patent_app_type] => 1 [patent_app_number] => 7/346861 [patent_app_country] => US [patent_app_date] => 1989-05-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2585 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 145 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/001/05001663.pdf [firstpage_image] =>[orig_patent_app_number] => 346861 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/346861
Programmable digital circuit for performing a matrix multiplication May 2, 1989 Issued
Array ( [id] => 2599455 [patent_doc_number] => 04933662 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-06-12 [patent_title] => 'Comparator having variable width comparisons' [patent_app_type] => 1 [patent_app_number] => 7/348107 [patent_app_country] => US [patent_app_date] => 1989-05-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 7 [patent_no_of_words] => 2118 [patent_no_of_claims] => 29 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 95 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/933/04933662.pdf [firstpage_image] =>[orig_patent_app_number] => 348107 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/348107
Comparator having variable width comparisons Apr 30, 1989 Issued
Array ( [id] => 2772986 [patent_doc_number] => 04994994 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-02-19 [patent_title] => 'Apparatus performing modulo p addition, where operands are expressed as powers of a generator, using a reduced size zech look-up table' [patent_app_type] => 1 [patent_app_number] => 7/345392 [patent_app_country] => US [patent_app_date] => 1989-05-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 4571 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 275 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/994/04994994.pdf [firstpage_image] =>[orig_patent_app_number] => 345392 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/345392
Apparatus performing modulo p addition, where operands are expressed as powers of a generator, using a reduced size zech look-up table Apr 30, 1989 Issued
Array ( [id] => 2703025 [patent_doc_number] => 05020016 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-05-28 [patent_title] => 'Circuit for detecting zero result of addition/subtraction by simultaneously processing each pair of corresponding bits of a pair of given numbers in parralel' [patent_app_type] => 1 [patent_app_number] => 7/345253 [patent_app_country] => US [patent_app_date] => 1989-05-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 7 [patent_no_of_words] => 5715 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 381 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/020/05020016.pdf [firstpage_image] =>[orig_patent_app_number] => 345253 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/345253
Circuit for detecting zero result of addition/subtraction by simultaneously processing each pair of corresponding bits of a pair of given numbers in parralel Apr 30, 1989 Issued
Array ( [id] => 2726420 [patent_doc_number] => 05008849 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-04-16 [patent_title] => 'Apparatus adding values represented as residues in modulo arithmetic' [patent_app_type] => 1 [patent_app_number] => 7/345391 [patent_app_country] => US [patent_app_date] => 1989-05-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 7042 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 316 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/008/05008849.pdf [firstpage_image] =>[orig_patent_app_number] => 345391 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/345391
Apparatus adding values represented as residues in modulo arithmetic Apr 30, 1989 Issued
Array ( [id] => 2756817 [patent_doc_number] => 05016205 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-05-14 [patent_title] => 'Digital signal processor based AGC' [patent_app_type] => 1 [patent_app_number] => 7/344321 [patent_app_country] => US [patent_app_date] => 1989-04-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 1900 [patent_no_of_claims] => 29 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 94 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/016/05016205.pdf [firstpage_image] =>[orig_patent_app_number] => 344321 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/344321
Digital signal processor based AGC Apr 26, 1989 Issued
Array ( [id] => 2716375 [patent_doc_number] => 05001660 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-03-19 [patent_title] => 'Waveform generation method using stored complex data' [patent_app_type] => 1 [patent_app_number] => 7/345264 [patent_app_country] => US [patent_app_date] => 1989-04-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2846 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 148 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/001/05001660.pdf [firstpage_image] =>[orig_patent_app_number] => 345264 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/345264
Waveform generation method using stored complex data Apr 26, 1989 Issued
90/001763 TEST APPARATUS FOR ELECTRONIC ASSEMBLIES EMPLOYING A MICROPROCESSOR Apr 25, 1989 Issued
Array ( [id] => 2861579 [patent_doc_number] => 05089981 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-02-18 [patent_title] => 'Hybrid form digital filter' [patent_app_type] => 1 [patent_app_number] => 7/342011 [patent_app_country] => US [patent_app_date] => 1989-04-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 6 [patent_no_of_words] => 3659 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 141 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/089/05089981.pdf [firstpage_image] =>[orig_patent_app_number] => 342011 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/342011
Hybrid form digital filter Apr 23, 1989 Issued
Menu