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] => 3061618 [patent_doc_number] => 05307302 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-04-26 [patent_title] => 'Square root operation device' [patent_app_type] => 1 [patent_app_number] => 7/893082 [patent_app_country] => US [patent_app_date] => 1992-06-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 30 [patent_figures_cnt] => 18 [patent_no_of_words] => 30503 [patent_no_of_claims] => 30 [patent_no_of_ind_claims] => 26 [patent_words_short_claim] => 412 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/307/05307302.pdf [firstpage_image] =>[orig_patent_app_number] => 893082 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/893082
Square root operation device Jun 2, 1992 Issued
Array ( [id] => 3085859 [patent_doc_number] => 05323339 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-06-21 [patent_title] => 'Digital anti-aliasing filter system' [patent_app_type] => 1 [patent_app_number] => 7/889942 [patent_app_country] => US [patent_app_date] => 1992-06-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 10 [patent_no_of_words] => 2137 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 171 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/323/05323339.pdf [firstpage_image] =>[orig_patent_app_number] => 889942 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/889942
Digital anti-aliasing filter system Jun 1, 1992 Issued
Array ( [id] => 3020789 [patent_doc_number] => 05282154 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-01-25 [patent_title] => 'System for determining and repairing instability in an IIR filter suitable for use in deghosting apparatus' [patent_app_type] => 1 [patent_app_number] => 7/891582 [patent_app_country] => US [patent_app_date] => 1992-06-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 5082 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 192 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/282/05282154.pdf [firstpage_image] =>[orig_patent_app_number] => 891582 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/891582
System for determining and repairing instability in an IIR filter suitable for use in deghosting apparatus May 31, 1992 Issued
Array ( [id] => 3064197 [patent_doc_number] => 05345410 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-09-06 [patent_title] => 'Arithmetic-logic unit with modulo addition/substraction function and microprocessor using the same' [patent_app_type] => 1 [patent_app_number] => 7/890712 [patent_app_country] => US [patent_app_date] => 1992-05-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 35 [patent_figures_cnt] => 45 [patent_no_of_words] => 6473 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 86 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/345/05345410.pdf [firstpage_image] =>[orig_patent_app_number] => 890712 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/890712
Arithmetic-logic unit with modulo addition/substraction function and microprocessor using the same May 28, 1992 Issued
Array ( [id] => 2947883 [patent_doc_number] => 05260887 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-11-09 [patent_title] => 'Bit data shift amount detector' [patent_app_type] => 1 [patent_app_number] => 7/889773 [patent_app_country] => US [patent_app_date] => 1992-05-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 3178 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 143 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/260/05260887.pdf [firstpage_image] =>[orig_patent_app_number] => 889773 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/889773
Bit data shift amount detector May 27, 1992 Issued
Array ( [id] => 2942455 [patent_doc_number] => 05233548 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-08-03 [patent_title] => 'Method and network configuration for attaining a continuous variation in the transfer function of an adaptive recursive network for processing discrete-time signals' [patent_app_type] => 1 [patent_app_number] => 7/888473 [patent_app_country] => US [patent_app_date] => 1992-05-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 11 [patent_no_of_words] => 3973 [patent_no_of_claims] => 11 [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/05/233/05233548.pdf [firstpage_image] =>[orig_patent_app_number] => 888473 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/888473
Method and network configuration for attaining a continuous variation in the transfer function of an adaptive recursive network for processing discrete-time signals May 21, 1992 Issued
Array ( [id] => 2995881 [patent_doc_number] => 05251164 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-10-05 [patent_title] => 'Low-power area-efficient absolute value arithmetic unit' [patent_app_type] => 1 [patent_app_number] => 7/887511 [patent_app_country] => US [patent_app_date] => 1992-05-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 21 [patent_no_of_words] => 7732 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 277 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/251/05251164.pdf [firstpage_image] =>[orig_patent_app_number] => 887511 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/887511
Low-power area-efficient absolute value arithmetic unit May 21, 1992 Issued
Array ( [id] => 2931232 [patent_doc_number] => 05235533 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-08-10 [patent_title] => 'Store rounding in a floating point unit' [patent_app_type] => 1 [patent_app_number] => 7/881043 [patent_app_country] => US [patent_app_date] => 1992-05-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 4041 [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/05/235/05235533.pdf [firstpage_image] =>[orig_patent_app_number] => 881043 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/881043
Store rounding in a floating point unit May 10, 1992 Issued
07/881333 MULTIPLY AND DIVIDE CIRCUIT May 10, 1992 Abandoned
Array ( [id] => 2973092 [patent_doc_number] => 05274581 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-12-28 [patent_title] => 'Look up table implementation of fast carry for adders and counters' [patent_app_type] => 1 [patent_app_number] => 7/880752 [patent_app_country] => US [patent_app_date] => 1992-05-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 3187 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 185 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/274/05274581.pdf [firstpage_image] =>[orig_patent_app_number] => 880752 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/880752
Look up table implementation of fast carry for adders and counters May 7, 1992 Issued
Array ( [id] => 3427870 [patent_doc_number] => 05434810 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1995-07-18 [patent_title] => 'Binary operator using block select look ahead system which serves as parallel adder/subtracter able to greatly reduce the number of elements of circuit with out sacrifice to high speed of computation' [patent_app_type] => 1 [patent_app_number] => 7/883247 [patent_app_country] => US [patent_app_date] => 1992-05-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 21 [patent_figures_cnt] => 35 [patent_no_of_words] => 21732 [patent_no_of_claims] => 50 [patent_no_of_ind_claims] => 31 [patent_words_short_claim] => 341 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/434/05434810.pdf [firstpage_image] =>[orig_patent_app_number] => 883247 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/883247
Binary operator using block select look ahead system which serves as parallel adder/subtracter able to greatly reduce the number of elements of circuit with out sacrifice to high speed of computation May 6, 1992 Issued
Array ( [id] => 2905147 [patent_doc_number] => 05184315 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-02-02 [patent_title] => 'Comprehensive computer data and control entries from very few keys operable in a fast touch typing mode' [patent_app_type] => 1 [patent_app_number] => 7/879128 [patent_app_country] => US [patent_app_date] => 1992-05-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 8 [patent_no_of_words] => 5137 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 314 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/184/05184315.pdf [firstpage_image] =>[orig_patent_app_number] => 879128 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/879128
Comprehensive computer data and control entries from very few keys operable in a fast touch typing mode May 4, 1992 Issued
Array ( [id] => 2908382 [patent_doc_number] => 05245559 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-09-14 [patent_title] => 'Portable computer with large screen display' [patent_app_type] => 1 [patent_app_number] => 7/879132 [patent_app_country] => US [patent_app_date] => 1992-05-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 2446 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 245 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/245/05245559.pdf [firstpage_image] =>[orig_patent_app_number] => 879132 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/879132
Portable computer with large screen display May 4, 1992 Issued
Array ( [id] => 3061234 [patent_doc_number] => 05325320 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-06-28 [patent_title] => 'Area efficient multiplier for use in an integrated circuit' [patent_app_type] => 1 [patent_app_number] => 7/877562 [patent_app_country] => US [patent_app_date] => 1992-05-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 6 [patent_no_of_words] => 2880 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 82 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/325/05325320.pdf [firstpage_image] =>[orig_patent_app_number] => 877562 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/877562
Area efficient multiplier for use in an integrated circuit Apr 30, 1992 Issued
Array ( [id] => 2955510 [patent_doc_number] => 05255215 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-10-19 [patent_title] => 'Digital filter system with changeable cutoff frequency' [patent_app_type] => 1 [patent_app_number] => 7/872922 [patent_app_country] => US [patent_app_date] => 1992-04-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 27 [patent_figures_cnt] => 30 [patent_no_of_words] => 12333 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 134 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/255/05255215.pdf [firstpage_image] =>[orig_patent_app_number] => 872922 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/872922
Digital filter system with changeable cutoff frequency Apr 22, 1992 Issued
Array ( [id] => 2997966 [patent_doc_number] => 05267183 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-11-30 [patent_title] => 'General purpose optical computer' [patent_app_type] => 1 [patent_app_number] => 7/873706 [patent_app_country] => US [patent_app_date] => 1992-04-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 55 [patent_figures_cnt] => 59 [patent_no_of_words] => 25325 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 287 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/267/05267183.pdf [firstpage_image] =>[orig_patent_app_number] => 873706 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/873706
General purpose optical computer Apr 21, 1992 Issued
Array ( [id] => 3024304 [patent_doc_number] => 05309381 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-05-03 [patent_title] => 'Probability estimation table apparatus' [patent_app_type] => 1 [patent_app_number] => 7/865313 [patent_app_country] => US [patent_app_date] => 1992-04-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 5795 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 186 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/309/05309381.pdf [firstpage_image] =>[orig_patent_app_number] => 865313 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/865313
Probability estimation table apparatus Apr 7, 1992 Issued
07/860981 PARALLELIZED BORROW LOOK AHEAD SUBTRACTOR Mar 30, 1992 Abandoned
07/861033 CYCLIC DIGITAL FILTER Mar 30, 1992 Abandoned
Array ( [id] => 3038253 [patent_doc_number] => 05317529 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-05-31 [patent_title] => 'Digital filter using intermediate holding registers and common accumulators and multipliers' [patent_app_type] => 1 [patent_app_number] => 7/859208 [patent_app_country] => US [patent_app_date] => 1992-03-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 4723 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 205 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/317/05317529.pdf [firstpage_image] =>[orig_patent_app_number] => 859208 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/859208
Digital filter using intermediate holding registers and common accumulators and multipliers Mar 26, 1992 Issued
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