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] => 2225514 [patent_doc_number] => 04594678 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1986-06-10 [patent_title] => 'Digital parallel computing circuit for computing p=xy+z in a shortened time' [patent_app_type] => 1 [patent_app_number] => 6/465386 [patent_app_country] => US [patent_app_date] => 1983-02-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 7 [patent_no_of_words] => 4646 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 374 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/594/04594678.pdf [firstpage_image] =>[orig_patent_app_number] => 465386 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/465386
Digital parallel computing circuit for computing p=xy+z in a shortened time Feb 9, 1983 Issued
Array ( [id] => 2149913 [patent_doc_number] => 04559609 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1985-12-17 [patent_title] => 'Full adder using transmission gates' [patent_app_type] => 1 [patent_app_number] => 6/464641 [patent_app_country] => US [patent_app_date] => 1983-02-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 2135 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 96 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/559/04559609.pdf [firstpage_image] =>[orig_patent_app_number] => 464641 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/464641
Full adder using transmission gates Feb 6, 1983 Issued
Array ( [id] => 2142613 [patent_doc_number] => 04494214 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1985-01-15 [patent_title] => 'Apparatus for generating scaled weighting coefficients for sampled data filters' [patent_app_type] => 1 [patent_app_number] => 6/463613 [patent_app_country] => US [patent_app_date] => 1983-02-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 3814 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 100 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/494/04494214.pdf [firstpage_image] =>[orig_patent_app_number] => 463613 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/463613
Apparatus for generating scaled weighting coefficients for sampled data filters Feb 2, 1983 Issued
Array ( [id] => 2227109 [patent_doc_number] => 04583180 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1986-04-15 [patent_title] => 'Floating point/logarithmic conversion system' [patent_app_type] => 1 [patent_app_number] => 6/461729 [patent_app_country] => US [patent_app_date] => 1983-01-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 5 [patent_no_of_words] => 1802 [patent_no_of_claims] => 11 [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/04/583/04583180.pdf [firstpage_image] =>[orig_patent_app_number] => 461729 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/461729
Floating point/logarithmic conversion system Jan 27, 1983 Issued
Array ( [id] => 2133717 [patent_doc_number] => 04543641 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1985-09-24 [patent_title] => 'Multiplication device using multiple-input adder' [patent_app_type] => 1 [patent_app_number] => 6/461257 [patent_app_country] => US [patent_app_date] => 1983-01-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 2287 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 277 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/543/04543641.pdf [firstpage_image] =>[orig_patent_app_number] => 461257 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/461257
Multiplication device using multiple-input adder Jan 25, 1983 Issued
Array ( [id] => 2247565 [patent_doc_number] => 04567567 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1986-01-28 [patent_title] => 'Computer keyboard displaying many operating instructions with few keys' [patent_app_type] => 1 [patent_app_number] => 6/459997 [patent_app_country] => US [patent_app_date] => 1983-01-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 3123 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 135 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/567/04567567.pdf [firstpage_image] =>[orig_patent_app_number] => 459997 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/459997
Computer keyboard displaying many operating instructions with few keys Jan 20, 1983 Issued
Array ( [id] => 2182404 [patent_doc_number] => 04547860 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1985-10-15 [patent_title] => 'Computer keyboards with few keys designating hundreds of functions' [patent_app_type] => 1 [patent_app_number] => 6/459998 [patent_app_country] => US [patent_app_date] => 1983-01-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 5431 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 170 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/547/04547860.pdf [firstpage_image] =>[orig_patent_app_number] => 459998 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/459998
Computer keyboards with few keys designating hundreds of functions Jan 20, 1983 Issued
Array ( [id] => 2185052 [patent_doc_number] => 04507747 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1985-03-26 [patent_title] => 'Procedure for shared-time processing of digital signals and application to a multiplexed self-adapting echo canceler' [patent_app_type] => 1 [patent_app_number] => 6/457942 [patent_app_country] => US [patent_app_date] => 1983-01-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 8127 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 401 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/507/04507747.pdf [firstpage_image] =>[orig_patent_app_number] => 457942 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/457942
Procedure for shared-time processing of digital signals and application to a multiplexed self-adapting echo canceler Jan 13, 1983 Issued
Array ( [id] => 2162592 [patent_doc_number] => 04525797 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1985-06-25 [patent_title] => 'N-bit carry select adder circuit having only one full adder per bit' [patent_app_type] => 1 [patent_app_number] => 6/455091 [patent_app_country] => US [patent_app_date] => 1983-01-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 6902 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 521 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/525/04525797.pdf [firstpage_image] =>[orig_patent_app_number] => 455091 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/455091
N-bit carry select adder circuit having only one full adder per bit Jan 2, 1983 Issued
Array ( [id] => 2152617 [patent_doc_number] => 04539549 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1985-09-03 [patent_title] => 'Method and apparatus for determining minimum/maximum of multiple data words' [patent_app_type] => 1 [patent_app_number] => 6/454813 [patent_app_country] => US [patent_app_date] => 1982-12-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 12 [patent_no_of_words] => 8623 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 185 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/539/04539549.pdf [firstpage_image] =>[orig_patent_app_number] => 454813 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/454813
Method and apparatus for determining minimum/maximum of multiple data words Dec 29, 1982 Issued
Array ( [id] => 2176898 [patent_doc_number] => 04538240 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1985-08-27 [patent_title] => 'Method and apparatus for performing hashing operations using Galois field multiplication' [patent_app_type] => 1 [patent_app_number] => 6/454912 [patent_app_country] => US [patent_app_date] => 1982-12-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 10 [patent_no_of_words] => 5360 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 199 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/538/04538240.pdf [firstpage_image] =>[orig_patent_app_number] => 454912 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/454912
Method and apparatus for performing hashing operations using Galois field multiplication Dec 29, 1982 Issued
Array ( [id] => 2205970 [patent_doc_number] => 04535417 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1985-08-13 [patent_title] => 'Method and apparatus for digital time-variant filtering' [patent_app_type] => 1 [patent_app_number] => 6/452474 [patent_app_country] => US [patent_app_date] => 1982-12-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 7321 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 90 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/535/04535417.pdf [firstpage_image] =>[orig_patent_app_number] => 452474 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/452474
Method and apparatus for digital time-variant filtering Dec 22, 1982 Issued
Array ( [id] => 2275044 [patent_doc_number] => 04566075 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1986-01-21 [patent_title] => 'Table lookup multiplier employing compressed data read only memory' [patent_app_type] => 1 [patent_app_number] => 6/451663 [patent_app_country] => US [patent_app_date] => 1982-12-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 10 [patent_no_of_words] => 3306 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 225 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/566/04566075.pdf [firstpage_image] =>[orig_patent_app_number] => 451663 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/451663
Table lookup multiplier employing compressed data read only memory Dec 20, 1982 Issued
Array ( [id] => 2205503 [patent_doc_number] => 04549280 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1985-10-22 [patent_title] => 'Apparatus for creating a multiplication pipeline of arbitrary size' [patent_app_type] => 1 [patent_app_number] => 6/451130 [patent_app_country] => US [patent_app_date] => 1982-12-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 15 [patent_no_of_words] => 6219 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 85 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/549/04549280.pdf [firstpage_image] =>[orig_patent_app_number] => 451130 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/451130
Apparatus for creating a multiplication pipeline of arbitrary size Dec 19, 1982 Issued
Array ( [id] => 2266204 [patent_doc_number] => 04564919 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1986-01-14 [patent_title] => 'Correlation calculating apparatus' [patent_app_type] => 1 [patent_app_number] => 6/450785 [patent_app_country] => US [patent_app_date] => 1982-12-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 26 [patent_figures_cnt] => 44 [patent_no_of_words] => 13936 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 149 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/564/04564919.pdf [firstpage_image] =>[orig_patent_app_number] => 450785 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/450785
Correlation calculating apparatus Dec 16, 1982 Issued
Array ( [id] => 2180887 [patent_doc_number] => 04556948 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1985-12-03 [patent_title] => 'Multiplier speed improvement by skipping carry save adders' [patent_app_type] => 1 [patent_app_number] => 6/449924 [patent_app_country] => US [patent_app_date] => 1982-12-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 8 [patent_no_of_words] => 5737 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 622 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/556/04556948.pdf [firstpage_image] =>[orig_patent_app_number] => 449924 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/449924
Multiplier speed improvement by skipping carry save adders Dec 14, 1982 Issued
Array ( [id] => 2184004 [patent_doc_number] => 04513386 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1985-04-23 [patent_title] => 'Random binary bit signal generator' [patent_app_type] => 1 [patent_app_number] => 6/442709 [patent_app_country] => US [patent_app_date] => 1982-11-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 5507 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 116 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/513/04513386.pdf [firstpage_image] =>[orig_patent_app_number] => 442709 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/442709
Random binary bit signal generator Nov 17, 1982 Issued
06/442232 DISPLAY DEVICE FOR A PROGRAMMABLE ELECTRONIC CALCULATOR Nov 15, 1982 Abandoned
Array ( [id] => 2206175 [patent_doc_number] => 04528641 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1985-07-09 [patent_title] => 'Variable radix processor' [patent_app_type] => 1 [patent_app_number] => 6/442212 [patent_app_country] => US [patent_app_date] => 1982-11-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 8 [patent_no_of_words] => 5251 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 172 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/528/04528641.pdf [firstpage_image] =>[orig_patent_app_number] => 442212 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/442212
Variable radix processor Nov 15, 1982 Issued
Array ( [id] => 2162024 [patent_doc_number] => 04531194 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1985-07-23 [patent_title] => 'Tape recorder drive system in a programmable electronic calculator' [patent_app_type] => 1 [patent_app_number] => 6/440303 [patent_app_country] => US [patent_app_date] => 1982-11-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 6 [patent_no_of_words] => 2637 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 101 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/531/04531194.pdf [firstpage_image] =>[orig_patent_app_number] => 440303 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/440303
Tape recorder drive system in a programmable electronic calculator Nov 8, 1982 Issued
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