
Ching Chang
Examiner (ID: 13382, Phone: (571)272-4857 , Office: P/3748 )
| Most Active Art Unit | 3748 |
| Art Unit(s) | 3748, 3746 |
| Total Applications | 1871 |
| Issued Applications | 1700 |
| Pending Applications | 11 |
| Abandoned Applications | 170 |
Applications
| Application number | Title of the application | Filing Date | Status |
|---|---|---|---|
Array
(
[id] => 6806679
[patent_doc_number] => 20030196618
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2003-10-23
[patent_title] => 'Externally mounted DPCS (differential pressure control system) with position sensor control to reduce frictional and magnetic hysteresis'
[patent_app_type] => new
[patent_app_number] => 10/281799
[patent_app_country] => US
[patent_app_date] => 2002-10-28
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 4
[patent_figures_cnt] => 4
[patent_no_of_words] => 3759
[patent_no_of_claims] => 14
[patent_no_of_ind_claims] => 3
[patent_words_short_claim] => 244
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] => publications/A1/0196/20030196618.pdf
[firstpage_image] =>[orig_patent_app_number] => 10281799
[rel_patent_id] =>[rel_patent_doc_number] =>) 10/281799 | Externally mounted DPCS (differential pressure control system) with position sensor control to reduce frictional and magnetic hysteresis | Oct 27, 2002 | Issued |
Array
(
[id] => 1342029
[patent_doc_number] => 06571757
[patent_country] => US
[patent_kind] => B1
[patent_issue_date] => 2003-06-03
[patent_title] => 'Variable force solenoid with spool position feedback to control the position of a center mounted spool valve to control the phase angle of cam mounted phaser'
[patent_app_type] => B1
[patent_app_number] => 10/281764
[patent_app_country] => US
[patent_app_date] => 2002-10-28
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 3
[patent_figures_cnt] => 3
[patent_no_of_words] => 2803
[patent_no_of_claims] => 16
[patent_no_of_ind_claims] => 3
[patent_words_short_claim] => 260
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/06/571/06571757.pdf
[firstpage_image] =>[orig_patent_app_number] => 10281764
[rel_patent_id] =>[rel_patent_doc_number] =>) 10/281764 | Variable force solenoid with spool position feedback to control the position of a center mounted spool valve to control the phase angle of cam mounted phaser | Oct 27, 2002 | Issued |
Array
(
[id] => 1148177
[patent_doc_number] => 06761138
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2004-07-13
[patent_title] => 'Valve timing control apparatus for internal combustion engine'
[patent_app_type] => B2
[patent_app_number] => 10/281327
[patent_app_country] => US
[patent_app_date] => 2002-10-28
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 12
[patent_figures_cnt] => 13
[patent_no_of_words] => 11766
[patent_no_of_claims] => 10
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 342
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/06/761/06761138.pdf
[firstpage_image] =>[orig_patent_app_number] => 10281327
[rel_patent_id] =>[rel_patent_doc_number] =>) 10/281327 | Valve timing control apparatus for internal combustion engine | Oct 27, 2002 | Issued |
Array
(
[id] => 1196838
[patent_doc_number] => 06722325
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2004-04-20
[patent_title] => 'Variable valve control apparatus for engine and method thereof'
[patent_app_type] => B2
[patent_app_number] => 10/278077
[patent_app_country] => US
[patent_app_date] => 2002-10-23
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 13
[patent_figures_cnt] => 16
[patent_no_of_words] => 4583
[patent_no_of_claims] => 19
[patent_no_of_ind_claims] => 3
[patent_words_short_claim] => 138
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/06/722/06722325.pdf
[firstpage_image] =>[orig_patent_app_number] => 10278077
[rel_patent_id] =>[rel_patent_doc_number] =>) 10/278077 | Variable valve control apparatus for engine and method thereof | Oct 22, 2002 | Issued |
Array
(
[id] => 1166774
[patent_doc_number] => 06742483
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2004-06-01
[patent_title] => 'Assisting device and method for variable valve mechanism'
[patent_app_type] => B2
[patent_app_number] => 10/274402
[patent_app_country] => US
[patent_app_date] => 2002-10-21
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 20
[patent_figures_cnt] => 26
[patent_no_of_words] => 10860
[patent_no_of_claims] => 23
[patent_no_of_ind_claims] => 4
[patent_words_short_claim] => 166
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/06/742/06742483.pdf
[firstpage_image] =>[orig_patent_app_number] => 10274402
[rel_patent_id] =>[rel_patent_doc_number] =>) 10/274402 | Assisting device and method for variable valve mechanism | Oct 20, 2002 | Issued |
Array
(
[id] => 7157124
[patent_doc_number] => 20040074461
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2004-04-22
[patent_title] => 'Leakdown plunger'
[patent_app_type] => new
[patent_app_number] => 10/274519
[patent_app_country] => US
[patent_app_date] => 2002-10-18
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 22
[patent_figures_cnt] => 22
[patent_no_of_words] => 4296
[patent_no_of_claims] => 6
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 55
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] => publications/A1/0074/20040074461.pdf
[firstpage_image] =>[orig_patent_app_number] => 10274519
[rel_patent_id] =>[rel_patent_doc_number] =>) 10/274519 | Leakdown plunger | Oct 17, 2002 | Issued |
Array
(
[id] => 7157133
[patent_doc_number] => 20040074463
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2004-04-22
[patent_title] => 'Metering socket'
[patent_app_type] => new
[patent_app_number] => 10/316262
[patent_app_country] => US
[patent_app_date] => 2002-10-18
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 14
[patent_figures_cnt] => 14
[patent_no_of_words] => 2808
[patent_no_of_claims] => 7
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 74
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] => publications/A1/0074/20040074463.pdf
[firstpage_image] =>[orig_patent_app_number] => 10316262
[rel_patent_id] =>[rel_patent_doc_number] =>) 10/316262 | Metering socket | Oct 17, 2002 | Issued |
Array
(
[id] => 1196840
[patent_doc_number] => 06722326
[patent_country] => US
[patent_kind] => B1
[patent_issue_date] => 2004-04-20
[patent_title] => 'Variable lift cylinder valve system for internal combustion engine'
[patent_app_type] => B1
[patent_app_number] => 10/065403
[patent_app_country] => US
[patent_app_date] => 2002-10-14
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 2
[patent_figures_cnt] => 4
[patent_no_of_words] => 2280
[patent_no_of_claims] => 8
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 194
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/06/722/06722326.pdf
[firstpage_image] =>[orig_patent_app_number] => 10065403
[rel_patent_id] =>[rel_patent_doc_number] =>) 10/065403 | Variable lift cylinder valve system for internal combustion engine | Oct 13, 2002 | Issued |
Array
(
[id] => 1193265
[patent_doc_number] => 06725819
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2004-04-27
[patent_title] => 'Rocker lever ball socket retainer'
[patent_app_type] => B2
[patent_app_number] => 10/269783
[patent_app_country] => US
[patent_app_date] => 2002-10-14
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 4
[patent_figures_cnt] => 10
[patent_no_of_words] => 4975
[patent_no_of_claims] => 2
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 167
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/06/725/06725819.pdf
[firstpage_image] =>[orig_patent_app_number] => 10269783
[rel_patent_id] =>[rel_patent_doc_number] =>) 10/269783 | Rocker lever ball socket retainer | Oct 13, 2002 | Issued |
Array
(
[id] => 1107784
[patent_doc_number] => 06805083
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2004-10-19
[patent_title] => 'Cam cover gasket'
[patent_app_type] => B2
[patent_app_number] => 10/065368
[patent_app_country] => US
[patent_app_date] => 2002-10-10
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 5
[patent_figures_cnt] => 13
[patent_no_of_words] => 2328
[patent_no_of_claims] => 30
[patent_no_of_ind_claims] => 10
[patent_words_short_claim] => 66
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/06/805/06805083.pdf
[firstpage_image] =>[orig_patent_app_number] => 10065368
[rel_patent_id] =>[rel_patent_doc_number] =>) 10/065368 | Cam cover gasket | Oct 9, 2002 | Issued |
Array
(
[id] => 1138631
[patent_doc_number] => 06772720
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2004-08-10
[patent_title] => 'Valve timing control device for internal combustion engine'
[patent_app_type] => B2
[patent_app_number] => 10/265690
[patent_app_country] => US
[patent_app_date] => 2002-10-08
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 9
[patent_figures_cnt] => 27
[patent_no_of_words] => 11273
[patent_no_of_claims] => 10
[patent_no_of_ind_claims] => 5
[patent_words_short_claim] => 158
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/06/772/06772720.pdf
[firstpage_image] =>[orig_patent_app_number] => 10265690
[rel_patent_id] =>[rel_patent_doc_number] =>) 10/265690 | Valve timing control device for internal combustion engine | Oct 7, 2002 | Issued |
Array
(
[id] => 952916
[patent_doc_number] => 06957634
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2005-10-25
[patent_title] => 'Engine valve actuator'
[patent_app_type] => utility
[patent_app_number] => 10/263799
[patent_app_country] => US
[patent_app_date] => 2002-10-04
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 4
[patent_figures_cnt] => 4
[patent_no_of_words] => 4195
[patent_no_of_claims] => 22
[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/06/957/06957634.pdf
[firstpage_image] =>[orig_patent_app_number] => 10263799
[rel_patent_id] =>[rel_patent_doc_number] =>) 10/263799 | Engine valve actuator | Oct 3, 2002 | Issued |
Array
(
[id] => 7428500
[patent_doc_number] => 20040065285
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2004-04-08
[patent_title] => 'Variable engine valve actuator'
[patent_app_type] => new
[patent_app_number] => 10/263798
[patent_app_country] => US
[patent_app_date] => 2002-10-04
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 5
[patent_figures_cnt] => 5
[patent_no_of_words] => 5419
[patent_no_of_claims] => 24
[patent_no_of_ind_claims] => 4
[patent_words_short_claim] => 27
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] => publications/A1/0065/20040065285.pdf
[firstpage_image] =>[orig_patent_app_number] => 10263798
[rel_patent_id] =>[rel_patent_doc_number] =>) 10/263798 | Variable engine valve actuator | Oct 3, 2002 | Abandoned |
Array
(
[id] => 7188031
[patent_doc_number] => 20050039709
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2005-02-24
[patent_title] => 'Method for linking elements to hollow shafts, preferably for producing camshafts, and resulting camshaft'
[patent_app_type] => utility
[patent_app_number] => 10/492866
[patent_app_country] => US
[patent_app_date] => 2002-10-04
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 3
[patent_figures_cnt] => 3
[patent_no_of_words] => 2355
[patent_no_of_claims] => 20
[patent_no_of_ind_claims] => 11
[patent_words_short_claim] => 0
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] => publications/A1/0039/20050039709.pdf
[firstpage_image] =>[orig_patent_app_number] => 10492866
[rel_patent_id] =>[rel_patent_doc_number] =>) 10/492866 | Method for linking element to hollow shafts, preferably for producing camshafts, and resulting camshaft | Oct 3, 2002 | Issued |
Array
(
[id] => 770333
[patent_doc_number] => 07000582
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2006-02-21
[patent_title] => 'Rocker arm'
[patent_app_type] => utility
[patent_app_number] => 10/490848
[patent_app_country] => US
[patent_app_date] => 2002-10-03
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 12
[patent_figures_cnt] => 20
[patent_no_of_words] => 7958
[patent_no_of_claims] => 8
[patent_no_of_ind_claims] => 3
[patent_words_short_claim] => 171
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/07/000/07000582.pdf
[firstpage_image] =>[orig_patent_app_number] => 10490848
[rel_patent_id] =>[rel_patent_doc_number] =>) 10/490848 | Rocker arm | Oct 2, 2002 | Issued |
Array
(
[id] => 1079473
[patent_doc_number] => 06834628
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2004-12-28
[patent_title] => 'Mechanical valve play compensation element for a valve drive on a piston combustion engine'
[patent_app_type] => B2
[patent_app_number] => 10/181222
[patent_app_country] => US
[patent_app_date] => 2002-10-02
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 4
[patent_figures_cnt] => 8
[patent_no_of_words] => 4108
[patent_no_of_claims] => 13
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 176
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/06/834/06834628.pdf
[firstpage_image] =>[orig_patent_app_number] => 10181222
[rel_patent_id] =>[rel_patent_doc_number] =>) 10/181222 | Mechanical valve play compensation element for a valve drive on a piston combustion engine | Oct 1, 2002 | Issued |
Array
(
[id] => 6794017
[patent_doc_number] => 20030172890
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2003-09-18
[patent_title] => 'Multicylinder engine with valve variable actuation, and an improved valve braking device therefor'
[patent_app_type] => new
[patent_app_number] => 10/259527
[patent_app_country] => US
[patent_app_date] => 2002-09-30
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 5
[patent_figures_cnt] => 5
[patent_no_of_words] => 3333
[patent_no_of_claims] => 9
[patent_no_of_ind_claims] => 3
[patent_words_short_claim] => 26
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] => publications/A1/0172/20030172890.pdf
[firstpage_image] =>[orig_patent_app_number] => 10259527
[rel_patent_id] =>[rel_patent_doc_number] =>) 10/259527 | Multicylinder engine with valve variable actuation, and an improved valve braking device therefor | Sep 29, 2002 | Issued |
Array
(
[id] => 1190024
[patent_doc_number] => 06729278
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2004-05-04
[patent_title] => 'Dual coil, dual lift electromechanical valve actuator'
[patent_app_type] => B2
[patent_app_number] => 10/065238
[patent_app_country] => US
[patent_app_date] => 2002-09-27
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 5
[patent_figures_cnt] => 10
[patent_no_of_words] => 4744
[patent_no_of_claims] => 21
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 137
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/06/729/06729278.pdf
[firstpage_image] =>[orig_patent_app_number] => 10065238
[rel_patent_id] =>[rel_patent_doc_number] =>) 10/065238 | Dual coil, dual lift electromechanical valve actuator | Sep 26, 2002 | Issued |
Array
(
[id] => 1261630
[patent_doc_number] => 06655328
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2003-12-02
[patent_title] => 'Method for controlling an electromagnetic valve drive by changing the current direction when supplying the electromagnets with current'
[patent_app_type] => B2
[patent_app_number] => 10/254917
[patent_app_country] => US
[patent_app_date] => 2002-09-26
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 4
[patent_figures_cnt] => 5
[patent_no_of_words] => 3436
[patent_no_of_claims] => 1
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 210
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/06/655/06655328.pdf
[firstpage_image] =>[orig_patent_app_number] => 10254917
[rel_patent_id] =>[rel_patent_doc_number] =>) 10/254917 | Method for controlling an electromagnetic valve drive by changing the current direction when supplying the electromagnets with current | Sep 25, 2002 | Issued |
Array
(
[id] => 1216468
[patent_doc_number] => 06701879
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2004-03-09
[patent_title] => 'Internal combustion engine'
[patent_app_type] => B2
[patent_app_number] => 10/253232
[patent_app_country] => US
[patent_app_date] => 2002-09-24
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 2
[patent_figures_cnt] => 2
[patent_no_of_words] => 2623
[patent_no_of_claims] => 10
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 181
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/06/701/06701879.pdf
[firstpage_image] =>[orig_patent_app_number] => 10253232
[rel_patent_id] =>[rel_patent_doc_number] =>) 10/253232 | Internal combustion engine | Sep 23, 2002 | Issued |