Search

Matthew D. Krcha

Examiner (ID: 5045, Phone: (571)270-0386 , Office: P/1798 )

Most Active Art Unit
1798
Art Unit(s)
1796, 1773, 1798
Total Applications
690
Issued Applications
401
Pending Applications
132
Abandoned Applications
190

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 2779082 [patent_doc_number] => 05075644 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-12-24 [patent_title] => 'Voltage controlled oscillator with filtered and compensated modulation' [patent_app_type] => 1 [patent_app_number] => 7/620817 [patent_app_country] => US [patent_app_date] => 1990-12-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 7 [patent_no_of_words] => 2545 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 53 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/075/05075644.pdf [firstpage_image] =>[orig_patent_app_number] => 620817 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/620817
Voltage controlled oscillator with filtered and compensated modulation Dec 2, 1990 Issued
07/621477 DIGITAL ANALOG SIGNAL DEMODULATOR Dec 2, 1990 Abandoned
Array ( [id] => 2883248 [patent_doc_number] => 05185584 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-02-09 [patent_title] => 'Phase locked loop (PLL) circuit having enhanced frequency selection range' [patent_app_type] => 1 [patent_app_number] => 7/620173 [patent_app_country] => US [patent_app_date] => 1990-11-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 1652 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 152 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/185/05185584.pdf [firstpage_image] =>[orig_patent_app_number] => 620173 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/620173
Phase locked loop (PLL) circuit having enhanced frequency selection range Nov 29, 1990 Issued
Array ( [id] => 2757964 [patent_doc_number] => 05072156 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-12-10 [patent_title] => 'Ballast circuit with means to disconnect power factor capacitor' [patent_app_type] => 1 [patent_app_number] => 7/619855 [patent_app_country] => US [patent_app_date] => 1990-11-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 843 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 193 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/072/05072156.pdf [firstpage_image] =>[orig_patent_app_number] => 619855 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/619855
Ballast circuit with means to disconnect power factor capacitor Nov 28, 1990 Issued
Array ( [id] => 2823705 [patent_doc_number] => 05081427 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-01-14 [patent_title] => 'Fast lock time phase locked loop' [patent_app_type] => 1 [patent_app_number] => 7/619648 [patent_app_country] => US [patent_app_date] => 1990-11-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 14 [patent_no_of_words] => 3509 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 244 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/081/05081427.pdf [firstpage_image] =>[orig_patent_app_number] => 619648 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/619648
Fast lock time phase locked loop Nov 28, 1990 Issued
Array ( [id] => 2809537 [patent_doc_number] => 05148086 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-09-15 [patent_title] => 'Means for securing insulation displacement terminals to leads extending from a fluorescent light ballast' [patent_app_type] => 1 [patent_app_number] => 7/620360 [patent_app_country] => US [patent_app_date] => 1990-11-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 11 [patent_no_of_words] => 2230 [patent_no_of_claims] => 1 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 263 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/148/05148086.pdf [firstpage_image] =>[orig_patent_app_number] => 620360 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/620360
Means for securing insulation displacement terminals to leads extending from a fluorescent light ballast Nov 28, 1990 Issued
Array ( [id] => 2828151 [patent_doc_number] => 05095251 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-03-10 [patent_title] => 'Low voltage DC light apparatus for a neon lamp' [patent_app_type] => 1 [patent_app_number] => 7/616062 [patent_app_country] => US [patent_app_date] => 1990-11-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 1126 [patent_no_of_claims] => 1 [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/05/095/05095251.pdf [firstpage_image] =>[orig_patent_app_number] => 616062 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/616062
Low voltage DC light apparatus for a neon lamp Nov 19, 1990 Issued
07/615137 CONTROLLED POWER-FACTOR-CORRECTED ELECTRONIC BALLAST Nov 18, 1990 Abandoned
Array ( [id] => 2819319 [patent_doc_number] => 05079513 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-01-07 [patent_title] => 'Demodulator and radio receiver having such a demodulator' [patent_app_type] => 1 [patent_app_number] => 7/612982 [patent_app_country] => US [patent_app_date] => 1990-11-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 15 [patent_no_of_words] => 5734 [patent_no_of_claims] => 14 [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/05/079/05079513.pdf [firstpage_image] =>[orig_patent_app_number] => 612982 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/612982
Demodulator and radio receiver having such a demodulator Nov 14, 1990 Issued
Array ( [id] => 2828864 [patent_doc_number] => 05095289 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-03-10 [patent_title] => 'Adjustable crystal controlled oscillator' [patent_app_type] => 1 [patent_app_number] => 7/612331 [patent_app_country] => US [patent_app_date] => 1990-11-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 22 [patent_no_of_words] => 7227 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 55 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/095/05095289.pdf [firstpage_image] =>[orig_patent_app_number] => 612331 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/612331
Adjustable crystal controlled oscillator Nov 12, 1990 Issued
Array ( [id] => 2828847 [patent_doc_number] => 05095288 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-03-10 [patent_title] => 'Phase-locked loop having a variable bandwidth' [patent_app_type] => 1 [patent_app_number] => 7/611523 [patent_app_country] => US [patent_app_date] => 1990-11-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 2882 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 174 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/095/05095288.pdf [firstpage_image] =>[orig_patent_app_number] => 611523 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/611523
Phase-locked loop having a variable bandwidth Nov 12, 1990 Issued
Array ( [id] => 2857212 [patent_doc_number] => 05089751 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-02-18 [patent_title] => 'Fluorescent lamp controllers with dimming control' [patent_app_type] => 1 [patent_app_number] => 7/606420 [patent_app_country] => US [patent_app_date] => 1990-10-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 11 [patent_no_of_words] => 12898 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 175 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/089/05089751.pdf [firstpage_image] =>[orig_patent_app_number] => 606420 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/606420
Fluorescent lamp controllers with dimming control Oct 30, 1990 Issued
Array ( [id] => 2835521 [patent_doc_number] => 05128634 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-07-07 [patent_title] => 'Oscillator cirucit independent or parasitic capacitors' [patent_app_type] => 1 [patent_app_number] => 7/604278 [patent_app_country] => US [patent_app_date] => 1990-10-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 2955 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 126 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/128/05128634.pdf [firstpage_image] =>[orig_patent_app_number] => 604278 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/604278
Oscillator cirucit independent or parasitic capacitors Oct 28, 1990 Issued
Array ( [id] => 2737876 [patent_doc_number] => 05039911 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-08-13 [patent_title] => 'Apparatus for dynamic magnetic field control' [patent_app_type] => 1 [patent_app_number] => 7/592690 [patent_app_country] => US [patent_app_date] => 1990-10-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 16 [patent_no_of_words] => 8238 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 175 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/039/05039911.pdf [firstpage_image] =>[orig_patent_app_number] => 592690 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/592690
Apparatus for dynamic magnetic field control Oct 2, 1990 Issued
Array ( [id] => 2676049 [patent_doc_number] => 05073744 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-12-17 [patent_title] => 'Method and apparatus for dynamic magnetic field neutralization' [patent_app_type] => 1 [patent_app_number] => 7/592638 [patent_app_country] => US [patent_app_date] => 1990-10-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 16 [patent_no_of_words] => 8244 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 45 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/073/05073744.pdf [firstpage_image] =>[orig_patent_app_number] => 592638 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/592638
Method and apparatus for dynamic magnetic field neutralization Oct 2, 1990 Issued
Array ( [id] => 2831840 [patent_doc_number] => 05117155 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-05-26 [patent_title] => 'Method and apparatus employing two independent means for nulling an ambient magnetic field' [patent_app_type] => 1 [patent_app_number] => 7/592691 [patent_app_country] => US [patent_app_date] => 1990-10-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 16 [patent_no_of_words] => 8241 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 24 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/117/05117155.pdf [firstpage_image] =>[orig_patent_app_number] => 592691 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/592691
Method and apparatus employing two independent means for nulling an ambient magnetic field Oct 2, 1990 Issued
Array ( [id] => 2765091 [patent_doc_number] => 05059925 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-10-22 [patent_title] => 'Method and apparatus for transparently switching clock sources' [patent_app_type] => 1 [patent_app_number] => 7/590668 [patent_app_country] => US [patent_app_date] => 1990-09-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 8 [patent_no_of_words] => 4835 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 192 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/059/05059925.pdf [firstpage_image] =>[orig_patent_app_number] => 590668 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/590668
Method and apparatus for transparently switching clock sources Sep 27, 1990 Issued
Array ( [id] => 2858352 [patent_doc_number] => 05126683 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-06-30 [patent_title] => 'Detection circuit for amplitude modulated signals' [patent_app_type] => 1 [patent_app_number] => 7/587685 [patent_app_country] => US [patent_app_date] => 1990-09-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 4158 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 360 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/126/05126683.pdf [firstpage_image] =>[orig_patent_app_number] => 587685 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/587685
Detection circuit for amplitude modulated signals Sep 24, 1990 Issued
Array ( [id] => 2857999 [patent_doc_number] => 05089793 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-02-18 [patent_title] => 'Semiconductor device having an oscillatory circuit' [patent_app_type] => 1 [patent_app_number] => 7/586677 [patent_app_country] => US [patent_app_date] => 1990-09-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 2814 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 173 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/089/05089793.pdf [firstpage_image] =>[orig_patent_app_number] => 586677 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/586677
Semiconductor device having an oscillatory circuit Sep 23, 1990 Issued
Array ( [id] => 2772620 [patent_doc_number] => 05036296 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-07-30 [patent_title] => 'Frequency tracking circuit using samples equalized at different sampling instants of same clock period' [patent_app_type] => 1 [patent_app_number] => 7/582147 [patent_app_country] => US [patent_app_date] => 1990-09-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 14 [patent_no_of_words] => 3615 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 258 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/036/05036296.pdf [firstpage_image] =>[orig_patent_app_number] => 582147 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/582147
Frequency tracking circuit using samples equalized at different sampling instants of same clock period Sep 12, 1990 Issued
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