
Chi H. Pham
Supervisory Patent Examiner (ID: 14849, Phone: (571)272-3179 , Office: P/2471 )
| Most Active Art Unit | 2611 |
| Art Unit(s) | 2616, 2667, 2611, 2731, 2607, 2471, 2745, 2631 |
| Total Applications | 629 |
| Issued Applications | 521 |
| Pending Applications | 51 |
| Abandoned Applications | 57 |
Applications
| Application number | Title of the application | Filing Date | Status |
|---|---|---|---|
Array
(
[id] => 19922015
[patent_doc_number] => 12296277
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2025-05-13
[patent_title] => Zip track and system
[patent_app_type] => utility
[patent_app_number] => 17/856506
[patent_app_country] => US
[patent_app_date] => 2022-07-01
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[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17856506
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/856506 | Zip track and system | Jun 30, 2022 | Issued |
Array
(
[id] => 18065368
[patent_doc_number] => 20220396455
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2022-12-15
[patent_title] => MOUNTING ASSEMBLIES FOR OVERHEAD RAIL SYSTEMS AND OVERHEAD RAIL SYSTEMS TO SUPPORT A LIFT UNIT
[patent_app_type] => utility
[patent_app_number] => 17/839935
[patent_app_country] => US
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Array
(
[id] => 19951544
[patent_doc_number] => 12322918
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2025-06-03
[patent_title] => Slidable current collector and method for contacting conductor rail
[patent_app_type] => utility
[patent_app_number] => 17/829528
[patent_app_country] => US
[patent_app_date] => 2022-06-01
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[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17829528
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/829528 | Slidable current collector and method for contacting conductor rail | May 31, 2022 | Issued |
Array
(
[id] => 19344489
[patent_doc_number] => 20240253452
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-08-01
[patent_title] => COOLING MODULE FOR AN ELECTRIC OR HYBRID MOTOR VEHICLE, HAVING A TANGENTIAL-FLOW TURBOMACHINE
[patent_app_type] => utility
[patent_app_number] => 18/561408
[patent_app_country] => US
[patent_app_date] => 2022-05-20
[patent_effective_date] => 0000-00-00
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[rel_patent_id] =>[rel_patent_doc_number] =>) 18/561408 | COOLING MODULE FOR AN ELECTRIC OR HYBRID MOTOR VEHICLE, HAVING A TANGENTIAL-FLOW TURBOMACHINE | May 19, 2022 | Pending |
Array
(
[id] => 18020130
[patent_doc_number] => 20220371629
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2022-11-24
[patent_title] => HOPPER CAR DISCHARGE GATE SEAL ASSEMBLY
[patent_app_type] => utility
[patent_app_number] => 17/747018
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[patent_app_date] => 2022-05-18
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[rel_patent_id] =>[rel_patent_doc_number] =>) 17/747018 | Hopper car discharge gate seal assembly | May 17, 2022 | Issued |
Array
(
[id] => 18035721
[patent_doc_number] => 20220379936
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2022-12-01
[patent_title] => AUTOMATIC ARMING OF A HEAD-OF-TRAIN DEVICE TO AN END-OF-TRAIN DEVICE
[patent_app_type] => utility
[patent_app_number] => 17/745973
[patent_app_country] => US
[patent_app_date] => 2022-05-17
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[rel_patent_id] =>[rel_patent_doc_number] =>) 17/745973 | AUTOMATIC ARMING OF A HEAD-OF-TRAIN DEVICE TO AN END-OF-TRAIN DEVICE | May 16, 2022 | Pending |
Array
(
[id] => 19332150
[patent_doc_number] => 20240246580
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[patent_kind] => A1
[patent_issue_date] => 2024-07-25
[patent_title] => COUPLER WITH ANGULAR POSITION DETECTION ASSEMBLY, ANGULAR POSITION DETECTION SYSTEM AND METHOD
[patent_app_type] => utility
[patent_app_number] => 18/290524
[patent_app_country] => US
[patent_app_date] => 2022-05-09
[patent_effective_date] => 0000-00-00
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[rel_patent_id] =>[rel_patent_doc_number] =>) 18/290524 | COUPLER WITH ANGULAR POSITION DETECTION ASSEMBLY, ANGULAR POSITION DETECTION SYSTEM AND METHOD | May 8, 2022 | Pending |
Array
(
[id] => 19381500
[patent_doc_number] => 20240271370
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-08-15
[patent_title] => TAMPING MACHINE FOR COMPACTING THE BALLAST BED OF A TRACK
[patent_app_type] => utility
[patent_app_number] => 18/289879
[patent_app_country] => US
[patent_app_date] => 2022-04-28
[patent_effective_date] => 0000-00-00
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[rel_patent_id] =>[rel_patent_doc_number] =>) 18/289879 | TAMPING MACHINE FOR COMPACTING THE BALLAST BED OF A TRACK | Apr 27, 2022 | Pending |
Array
(
[id] => 17791572
[patent_doc_number] => 20220250663
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[patent_kind] => A1
[patent_issue_date] => 2022-08-11
[patent_title] => DERAILING SYSTEM
[patent_app_type] => utility
[patent_app_number] => 17/661226
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[patent_app_date] => 2022-04-28
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[rel_patent_id] =>[rel_patent_doc_number] =>) 17/661226 | Derailing system | Apr 27, 2022 | Issued |
Array
(
[id] => 19233215
[patent_doc_number] => 20240190407
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[patent_kind] => A1
[patent_issue_date] => 2024-06-13
[patent_title] => METHOD AND SYSTEM FOR GENERATING COMPRESSED AIR OF AT LEAST ONE VEHICLE, PARTICULARLY AT LEAST ONE RAILWAY VEHICLE
[patent_app_type] => utility
[patent_app_number] => 18/556326
[patent_app_country] => US
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[rel_patent_id] =>[rel_patent_doc_number] =>) 18/556326 | METHOD AND SYSTEM FOR GENERATING COMPRESSED AIR OF AT LEAST ONE VEHICLE, PARTICULARLY AT LEAST ONE RAILWAY VEHICLE | Apr 25, 2022 | Pending |
Array
(
[id] => 18725360
[patent_doc_number] => 20230339525
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[patent_kind] => A1
[patent_issue_date] => 2023-10-26
[patent_title] => SYSTEM AND METHOD FOR CONTROLLING A TRAIN TRAVELLING ALONG A RAILWAY LINE
[patent_app_type] => utility
[patent_app_number] => 17/660557
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[rel_patent_id] =>[rel_patent_doc_number] =>) 17/660557 | System and method for controlling a train travelling along a railway line | Apr 24, 2022 | Issued |
Array
(
[id] => 17959599
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[patent_kind] => A1
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[patent_title] => MAINTENANCE SHUTTLE FOR AN ELECTRIC OVERHEAD CONVEYOR
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Array
(
[id] => 18035930
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[patent_title] => Travel Robot For Moving Substrate Transfer Robot In Vacuum Chamber
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[rel_patent_id] =>[rel_patent_doc_number] =>) 17/723106 | Travel robot for moving substrate transfer robot in vacuum chamber | Apr 17, 2022 | Issued |
Array
(
[id] => 18020134
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[patent_issue_date] => 2022-11-24
[patent_title] => Railroad Coupler Knuckle with External Weight Reducing Features
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Array
(
[id] => 20271606
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[rel_patent_id] =>[rel_patent_doc_number] =>) 17/720165 | Maglev or hyperloop staggered track design for reduced landing gear bump loading | Apr 12, 2022 | Issued |
Array
(
[id] => 17912669
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[patent_title] => Hopper Car Outlet Gate Mechanical Flap to Prevent Pellet Loss
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[rel_patent_id] =>[rel_patent_doc_number] =>) 17/713388 | Hopper car outlet gate mechanical flap to prevent pellet loss | Apr 4, 2022 | Issued |
Array
(
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Array
(
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Array
(
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Array
(
[id] => 18648962
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[patent_title] => CROSSING GATE MECHANISM WITH INTEGRATED COVER OR DOOR DETECTION SCHEME
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[rel_patent_id] =>[rel_patent_doc_number] =>) 17/654897 | Crossing gate mechanism with integrated cover or door detection scheme | Mar 14, 2022 | Issued |