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
07/340241 PARALLEL ADDER/SUBTRACTER Apr 18, 1989 Abandoned
Array ( [id] => 2667959 [patent_doc_number] => 04979142 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-12-18 [patent_title] => 'Two-bit floating point divide circuit with single carry-save adder' [patent_app_type] => 1 [patent_app_number] => 7/339261 [patent_app_country] => US [patent_app_date] => 1989-04-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 6343 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 389 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/979/04979142.pdf [firstpage_image] =>[orig_patent_app_number] => 339261 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/339261
Two-bit floating point divide circuit with single carry-save adder Apr 16, 1989 Issued
Array ( [id] => 2716694 [patent_doc_number] => 05014232 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-05-07 [patent_title] => 'Adaptive digital filter having non-recursive and recursive filter elements' [patent_app_type] => 1 [patent_app_number] => 7/334712 [patent_app_country] => US [patent_app_date] => 1989-04-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 9 [patent_no_of_words] => 2666 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 87 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/014/05014232.pdf [firstpage_image] =>[orig_patent_app_number] => 334712 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/334712
Adaptive digital filter having non-recursive and recursive filter elements Apr 6, 1989 Issued
Array ( [id] => 2598361 [patent_doc_number] => 04970676 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-11-13 [patent_title] => 'Digital word-serial multiplier circuitry' [patent_app_type] => 1 [patent_app_number] => 7/333052 [patent_app_country] => US [patent_app_date] => 1989-04-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3038 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 261 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/970/04970676.pdf [firstpage_image] =>[orig_patent_app_number] => 333052 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/333052
Digital word-serial multiplier circuitry Apr 3, 1989 Issued
Array ( [id] => 2644468 [patent_doc_number] => 04899300 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-02-06 [patent_title] => 'Circuit to perform a linear transformation on a digital signal' [patent_app_type] => 1 [patent_app_number] => 7/331012 [patent_app_country] => US [patent_app_date] => 1989-03-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 2121 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 226 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/899/04899300.pdf [firstpage_image] =>[orig_patent_app_number] => 331012 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/331012
Circuit to perform a linear transformation on a digital signal Mar 29, 1989 Issued
Array ( [id] => 2607014 [patent_doc_number] => 04924431 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-05-08 [patent_title] => 'Keyboard located indicia for instructing a multi-mode programmable computer having alphanumeric capabilities from a few keyboard keys' [patent_app_type] => 1 [patent_app_number] => 7/331043 [patent_app_country] => US [patent_app_date] => 1989-03-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 3666 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 227 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/924/04924431.pdf [firstpage_image] =>[orig_patent_app_number] => 331043 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/331043
Keyboard located indicia for instructing a multi-mode programmable computer having alphanumeric capabilities from a few keyboard keys Mar 28, 1989 Issued
Array ( [id] => 2589093 [patent_doc_number] => 04974185 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-11-27 [patent_title] => 'Digital filter for executing a video emphasis process through mode selection' [patent_app_type] => 1 [patent_app_number] => 7/330361 [patent_app_country] => US [patent_app_date] => 1989-03-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 2781 [patent_no_of_claims] => 20 [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/04/974/04974185.pdf [firstpage_image] =>[orig_patent_app_number] => 330361 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/330361
Digital filter for executing a video emphasis process through mode selection Mar 28, 1989 Issued
Array ( [id] => 2678111 [patent_doc_number] => 04999795 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-03-12 [patent_title] => 'Portable keyboard operated alpha computer system with few keys and visual keystroke instructions' [patent_app_type] => 1 [patent_app_number] => 7/330988 [patent_app_country] => US [patent_app_date] => 1989-03-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 3753 [patent_no_of_claims] => 29 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 150 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/999/04999795.pdf [firstpage_image] =>[orig_patent_app_number] => 330988 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/330988
Portable keyboard operated alpha computer system with few keys and visual keystroke instructions Mar 28, 1989 Issued
Array ( [id] => 2646368 [patent_doc_number] => 04910697 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-03-20 [patent_title] => 'Programmable computer with alphanumeric capabilities having few keyboard keys' [patent_app_type] => 1 [patent_app_number] => 7/331049 [patent_app_country] => US [patent_app_date] => 1989-03-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 2535 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 148 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/910/04910697.pdf [firstpage_image] =>[orig_patent_app_number] => 331049 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/331049
Programmable computer with alphanumeric capabilities having few keyboard keys Mar 28, 1989 Issued
Array ( [id] => 2772950 [patent_doc_number] => 04994992 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-02-19 [patent_title] => 'Contoured touch type data processing keyboard' [patent_app_type] => 1 [patent_app_number] => 7/327422 [patent_app_country] => US [patent_app_date] => 1989-03-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 8 [patent_no_of_words] => 3855 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 122 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/994/04994992.pdf [firstpage_image] =>[orig_patent_app_number] => 327422 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/327422
Contoured touch type data processing keyboard Mar 20, 1989 Issued
07/317115 METHOD OF CORRECTING ERRONEOUS VALUES OF SAMPLES OF AN EQUIDISTANTLY SAMPLED SIGNAL AND DEVICE FOR CARRYING OUT THE METHOD Feb 27, 1989 Abandoned
Array ( [id] => 2721877 [patent_doc_number] => 05010508 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-04-23 [patent_title] => 'Prenormalization for a floating-point adder' [patent_app_type] => 1 [patent_app_number] => 7/311294 [patent_app_country] => US [patent_app_date] => 1989-02-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 11116 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 340 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/010/05010508.pdf [firstpage_image] =>[orig_patent_app_number] => 311294 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/311294
Prenormalization for a floating-point adder Feb 13, 1989 Issued
07/309001 MULTI-LEVEL DISPLAY FOR SMALL COMPUTER Feb 7, 1989 Abandoned
Array ( [id] => 2598288 [patent_doc_number] => 04970672 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-11-13 [patent_title] => 'Data processing system, and keypad assembly for inputting data in such system' [patent_app_type] => 1 [patent_app_number] => 7/301663 [patent_app_country] => US [patent_app_date] => 1989-01-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 6418 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 249 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/970/04970672.pdf [firstpage_image] =>[orig_patent_app_number] => 301663 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/301663
Data processing system, and keypad assembly for inputting data in such system Jan 24, 1989 Issued
Array ( [id] => 2589111 [patent_doc_number] => 04974186 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-11-27 [patent_title] => 'Generalized digital multiplier and digital filter using said multiplier' [patent_app_type] => 1 [patent_app_number] => 7/300884 [patent_app_country] => US [patent_app_date] => 1989-01-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 16 [patent_no_of_words] => 5952 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 382 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/974/04974186.pdf [firstpage_image] =>[orig_patent_app_number] => 300884 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/300884
Generalized digital multiplier and digital filter using said multiplier Jan 23, 1989 Issued
Array ( [id] => 2716693 [patent_doc_number] => 04982355 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-01-01 [patent_title] => 'Low-power parallel multiplier' [patent_app_type] => 1 [patent_app_number] => 7/300492 [patent_app_country] => US [patent_app_date] => 1989-01-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 12 [patent_no_of_words] => 4754 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 269 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/982/04982355.pdf [firstpage_image] =>[orig_patent_app_number] => 300492 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/300492
Low-power parallel multiplier Jan 19, 1989 Issued
Array ( [id] => 2678236 [patent_doc_number] => 04999802 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-03-12 [patent_title] => 'Floating point arithmetic two cycle data flow' [patent_app_type] => 1 [patent_app_number] => 7/297781 [patent_app_country] => US [patent_app_date] => 1989-01-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 8 [patent_no_of_words] => 2063 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 105 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/999/04999802.pdf [firstpage_image] =>[orig_patent_app_number] => 297781 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/297781
Floating point arithmetic two cycle data flow Jan 12, 1989 Issued
Array ( [id] => 2564981 [patent_doc_number] => 04961162 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-10-02 [patent_title] => 'Multiprocessing system for performing floating point arithmetic operations' [patent_app_type] => 1 [patent_app_number] => 7/297782 [patent_app_country] => US [patent_app_date] => 1989-01-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 17 [patent_no_of_words] => 4088 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 104 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/961/04961162.pdf [firstpage_image] =>[orig_patent_app_number] => 297782 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/297782
Multiprocessing system for performing floating point arithmetic operations Jan 12, 1989 Issued
07/297771 METHOD AND APPARATUS FOR PERFORMING FLOATING POINT DIVISION Jan 12, 1989 Abandoned
Array ( [id] => 2678183 [patent_doc_number] => 04999799 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-03-12 [patent_title] => 'Signal processing apparatus for generating a fourier transform' [patent_app_type] => 1 [patent_app_number] => 7/295122 [patent_app_country] => US [patent_app_date] => 1989-01-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 4391 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 124 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/999/04999799.pdf [firstpage_image] =>[orig_patent_app_number] => 295122 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/295122
Signal processing apparatus for generating a fourier transform Jan 8, 1989 Issued
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