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] => 2985191 [patent_doc_number] => 05208769 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-05-04 [patent_title] => 'Unsigned integer multiply/divide circuit' [patent_app_type] => 1 [patent_app_number] => 7/762593 [patent_app_country] => US [patent_app_date] => 1991-09-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 9 [patent_no_of_words] => 4322 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 301 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/208/05208769.pdf [firstpage_image] =>[orig_patent_app_number] => 762593 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/762593
Unsigned integer multiply/divide circuit Sep 18, 1991 Issued
07/763662 METHOD FOR FILTERING DIGITAL SIGNALS WHICH VARIES THE FILTER LENGTH Sep 17, 1991 Abandoned
Array ( [id] => 2996374 [patent_doc_number] => 05212660 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-05-18 [patent_title] => 'Digital filter having a switching matrix and adders' [patent_app_type] => 1 [patent_app_number] => 7/760324 [patent_app_country] => US [patent_app_date] => 1991-09-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 22 [patent_no_of_words] => 7970 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 330 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/212/05212660.pdf [firstpage_image] =>[orig_patent_app_number] => 760324 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/760324
Digital filter having a switching matrix and adders Sep 15, 1991 Issued
Array ( [id] => 2931331 [patent_doc_number] => 05235538 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-08-10 [patent_title] => 'Semiconductor operation device with memory for storing operation codes connected from coefficients prior to performing an operation on an input signal' [patent_app_type] => 1 [patent_app_number] => 7/756884 [patent_app_country] => US [patent_app_date] => 1991-09-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 14 [patent_no_of_words] => 5086 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 166 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/235/05235538.pdf [firstpage_image] =>[orig_patent_app_number] => 756884 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/756884
Semiconductor operation device with memory for storing operation codes connected from coefficients prior to performing an operation on an input signal Sep 8, 1991 Issued
Array ( [id] => 2885771 [patent_doc_number] => 05185713 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-02-09 [patent_title] => 'Product adder for perfoming multiplication of floating point data and addition of fixed point data' [patent_app_type] => 1 [patent_app_number] => 7/756922 [patent_app_country] => US [patent_app_date] => 1991-09-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 11 [patent_no_of_words] => 2669 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 93 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/185/05185713.pdf [firstpage_image] =>[orig_patent_app_number] => 756922 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/756922
Product adder for perfoming multiplication of floating point data and addition of fixed point data Sep 8, 1991 Issued
Array ( [id] => 2870287 [patent_doc_number] => 05166898 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-11-24 [patent_title] => 'Shift amount floating-point calculating circuit with a small amount of hardware and rapidly operable' [patent_app_type] => 1 [patent_app_number] => 7/756294 [patent_app_country] => US [patent_app_date] => 1991-09-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 16 [patent_no_of_words] => 14422 [patent_no_of_claims] => 29 [patent_no_of_ind_claims] => 17 [patent_words_short_claim] => 474 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/166/05166898.pdf [firstpage_image] =>[orig_patent_app_number] => 756294 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/756294
Shift amount floating-point calculating circuit with a small amount of hardware and rapidly operable Sep 5, 1991 Issued
Array ( [id] => 2913114 [patent_doc_number] => 05249149 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-09-28 [patent_title] => 'Method and apparatus for performining floating point division' [patent_app_type] => 1 [patent_app_number] => 7/755588 [patent_app_country] => US [patent_app_date] => 1991-09-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 5164 [patent_no_of_claims] => 28 [patent_no_of_ind_claims] => 7 [patent_words_short_claim] => 114 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/249/05249149.pdf [firstpage_image] =>[orig_patent_app_number] => 755588 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/755588
Method and apparatus for performining floating point division Sep 2, 1991 Issued
Array ( [id] => 2989142 [patent_doc_number] => 05204825 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-04-20 [patent_title] => 'Method and apparatus for exact leading zero prediction for a floating-point adder' [patent_app_type] => 1 [patent_app_number] => 7/751931 [patent_app_country] => US [patent_app_date] => 1991-08-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 7 [patent_no_of_words] => 3213 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 166 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/204/05204825.pdf [firstpage_image] =>[orig_patent_app_number] => 751931 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/751931
Method and apparatus for exact leading zero prediction for a floating-point adder Aug 29, 1991 Issued
Array ( [id] => 2939997 [patent_doc_number] => 05220306 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-06-15 [patent_title] => 'Digital signal comparator for comparing n-bit binary signals' [patent_app_type] => 1 [patent_app_number] => 7/751531 [patent_app_country] => US [patent_app_date] => 1991-08-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 2479 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 244 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/220/05220306.pdf [firstpage_image] =>[orig_patent_app_number] => 751531 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/751531
Digital signal comparator for comparing n-bit binary signals Aug 28, 1991 Issued
Array ( [id] => 2859215 [patent_doc_number] => 05105375 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-04-14 [patent_title] => 'Keyboard menus displayed on the computer screen for directing entry of alphanumeric characters in a two-stroke mode' [patent_app_type] => 1 [patent_app_number] => 7/755492 [patent_app_country] => US [patent_app_date] => 1991-08-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 8 [patent_no_of_words] => 3871 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 359 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/105/05105375.pdf [firstpage_image] =>[orig_patent_app_number] => 755492 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/755492
Keyboard menus displayed on the computer screen for directing entry of alphanumeric characters in a two-stroke mode Aug 27, 1991 Issued
Array ( [id] => 2813292 [patent_doc_number] => 05124940 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-06-23 [patent_title] => 'Programmable hand held computers operable with two-strokes perentry alpha with instruction menus on temporary viewing screen' [patent_app_type] => 1 [patent_app_number] => 7/755493 [patent_app_country] => US [patent_app_date] => 1991-08-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 9 [patent_no_of_words] => 4954 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 334 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/124/05124940.pdf [firstpage_image] =>[orig_patent_app_number] => 755493 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/755493
Programmable hand held computers operable with two-strokes perentry alpha with instruction menus on temporary viewing screen Aug 27, 1991 Issued
Array ( [id] => 2937617 [patent_doc_number] => 05187677 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-02-16 [patent_title] => 'Waveform synthesizer through simulating multiplication' [patent_app_type] => 1 [patent_app_number] => 7/749384 [patent_app_country] => US [patent_app_date] => 1991-08-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 25 [patent_no_of_words] => 3789 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 103 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/187/05187677.pdf [firstpage_image] =>[orig_patent_app_number] => 749384 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/749384
Waveform synthesizer through simulating multiplication Aug 22, 1991 Issued
Array ( [id] => 2958051 [patent_doc_number] => 05222037 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-06-22 [patent_title] => 'Floating-point processor for performing an arithmetic operation on fixed-point part data with high speed rounding of a result' [patent_app_type] => 1 [patent_app_number] => 7/747583 [patent_app_country] => US [patent_app_date] => 1991-08-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 9 [patent_no_of_words] => 14964 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 292 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/222/05222037.pdf [firstpage_image] =>[orig_patent_app_number] => 747583 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/747583
Floating-point processor for performing an arithmetic operation on fixed-point part data with high speed rounding of a result Aug 19, 1991 Issued
Array ( [id] => 3020202 [patent_doc_number] => 05276634 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-01-04 [patent_title] => 'Floating point data processing apparatus which simultaneously effects summation and rounding computations' [patent_app_type] => 1 [patent_app_number] => 7/748191 [patent_app_country] => US [patent_app_date] => 1991-08-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 40 [patent_figures_cnt] => 54 [patent_no_of_words] => 31381 [patent_no_of_claims] => 25 [patent_no_of_ind_claims] => 7 [patent_words_short_claim] => 123 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/276/05276634.pdf [firstpage_image] =>[orig_patent_app_number] => 748191 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/748191
Floating point data processing apparatus which simultaneously effects summation and rounding computations Aug 19, 1991 Issued
90/002394 SUSPEND/RESUME APPARATUS AND METHOD FOR REDUCING POWER CONSUMPTION IN BATTERY POWERED COMPUTERS Jul 30, 1991 Issued
Array ( [id] => 2943772 [patent_doc_number] => 05189632 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-02-23 [patent_title] => 'Portable personal computer and mobile telephone device' [patent_app_type] => 1 [patent_app_number] => 7/734731 [patent_app_country] => US [patent_app_date] => 1991-07-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 5 [patent_no_of_words] => 1535 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 177 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/189/05189632.pdf [firstpage_image] =>[orig_patent_app_number] => 734731 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/734731
Portable personal computer and mobile telephone device Jul 22, 1991 Issued
07/729863 TERMINATOR KEYS HAVING RECIPROCAL EXPONENTS IN A DATA PROCESSING SYSTEM Jul 18, 1991 Abandoned
07/726627 CHUNKY BINARY MULTIPLIER AND METHOD OF OPERATION Jun 27, 1991 Abandoned
Array ( [id] => 2937599 [patent_doc_number] => 05187676 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-02-16 [patent_title] => 'High-speed pseudo-random number generator and method for generating same' [patent_app_type] => 1 [patent_app_number] => 7/724531 [patent_app_country] => US [patent_app_date] => 1991-06-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3727 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 211 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/187/05187676.pdf [firstpage_image] =>[orig_patent_app_number] => 724531 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/724531
High-speed pseudo-random number generator and method for generating same Jun 27, 1991 Issued
Array ( [id] => 3791766 [patent_doc_number] => 05818742 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1998-10-06 [patent_title] => 'Apparatus to transform time to frequency and frequency to time of data signals' [patent_app_type] => 1 [patent_app_number] => 7/720202 [patent_app_country] => US [patent_app_date] => 1991-06-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 13 [patent_no_of_words] => 8122 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 7 [patent_words_short_claim] => 152 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/818/05818742.pdf [firstpage_image] =>[orig_patent_app_number] => 720202 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/720202
Apparatus to transform time to frequency and frequency to time of data signals Jun 23, 1991 Issued
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