
Ziaul A. Chowdhury
Examiner (ID: 5504, Phone: (571)270-7750 , Office: P/2192 )
| Most Active Art Unit | 2192 |
| Art Unit(s) | 2192 |
| Total Applications | 661 |
| Issued Applications | 568 |
| Pending Applications | 40 |
| Abandoned Applications | 71 |
Applications
| Application number | Title of the application | Filing Date | Status |
|---|---|---|---|
Array
(
[id] => 20104178
[patent_doc_number] => 20250234114
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2025-07-17
[patent_title] => Voltage Detection Devices and Safety Headwear Coupling Systems
[patent_app_type] => utility
[patent_app_number] => 18/969703
[patent_app_country] => US
[patent_app_date] => 2024-12-05
[patent_effective_date] => 0000-00-00
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Array
(
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[patent_doc_number] => 20250354447
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2025-11-20
[patent_title] => AUTONOMOUS WIRELINE SERVICE
[patent_app_type] => utility
[patent_app_number] => 18/967877
[patent_app_country] => US
[patent_app_date] => 2024-12-04
[patent_effective_date] => 0000-00-00
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Array
(
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[patent_doc_number] => 20250211229
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[patent_kind] => A1
[patent_issue_date] => 2025-06-26
[patent_title] => PIEZOELECTRIC BUTTON SYSTEM
[patent_app_type] => utility
[patent_app_number] => 18/961595
[patent_app_country] => US
[patent_app_date] => 2024-11-27
[patent_effective_date] => 0000-00-00
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Array
(
[id] => 20737306
[patent_doc_number] => 20260146599
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2026-05-28
[patent_title] => HYDRAULIC FRACTURING PUMP SYSTEM USING A NETWORK OF CONTROLLERS
[patent_app_type] => utility
[patent_app_number] => 18/963225
[patent_app_country] => US
[patent_app_date] => 2024-11-27
[patent_effective_date] => 0000-00-00
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Array
(
[id] => 20528818
[patent_doc_number] => 12547253
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[patent_kind] => B2
[patent_issue_date] => 2026-02-10
[patent_title] => Keyboard device and electronic device connected with keyboard device
[patent_app_type] => utility
[patent_app_number] => 18/953610
[patent_app_country] => US
[patent_app_date] => 2024-11-20
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Array
(
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[patent_issue_date] => 2026-06-02
[patent_title] => Smart backpack system
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Array
(
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[patent_title] => DECODING OF A BIPHASE SIGNAL IN A WIRELINE MODEM
[patent_app_type] => utility
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[patent_app_date] => 2024-10-30
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[rel_patent_id] =>[rel_patent_doc_number] =>) 18/931514 | DECODING OF A BIPHASE SIGNAL IN A WIRELINE MODEM | Oct 29, 2024 | Pending |
Array
(
[id] => 20537265
[patent_doc_number] => 12554339
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[patent_kind] => B2
[patent_issue_date] => 2026-02-17
[patent_title] => Adaptive chord typing system
[patent_app_type] => utility
[patent_app_number] => 18/929943
[patent_app_country] => US
[patent_app_date] => 2024-10-29
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[rel_patent_id] =>[rel_patent_doc_number] =>) 18/929943 | Adaptive chord typing system | Oct 28, 2024 | Issued |
Array
(
[id] => 20772095
[patent_doc_number] => 12655758
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[patent_kind] => B2
[patent_issue_date] => 2026-06-16
[patent_title] => Mud pulser having a filter housing
[patent_app_type] => utility
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[rel_patent_id] =>[rel_patent_doc_number] =>) 18/928009 | Mud pulser having a filter housing | Oct 25, 2024 | Issued |
Array
(
[id] => 19757654
[patent_doc_number] => 20250046219
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[patent_kind] => A1
[patent_issue_date] => 2025-02-06
[patent_title] => BEVERAGE CONTAINERS
[patent_app_type] => utility
[patent_app_number] => 18/927797
[patent_app_country] => US
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[rel_patent_id] =>[rel_patent_doc_number] =>) 18/927797 | BEVERAGE CONTAINERS | Oct 24, 2024 | Pending |
Array
(
[id] => 20393872
[patent_doc_number] => 20250369347
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[patent_kind] => A1
[patent_issue_date] => 2025-12-04
[patent_title] => SEQUENCE OF CONTINUOUS EXCITATIONS FOR GENERATING PRESSURE PULSE SIGNAL IN A WELL SYSTEM
[patent_app_type] => utility
[patent_app_number] => 18/920381
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[rel_patent_id] =>[rel_patent_doc_number] =>) 18/920381 | SEQUENCE OF CONTINUOUS EXCITATIONS FOR GENERATING PRESSURE PULSE SIGNAL IN A WELL SYSTEM | Oct 17, 2024 | Issued |
Array
(
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[patent_title] => Monitoring and early warning method for gas gate station and internet of things system thereof
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Array
(
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Array
(
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[patent_title] => High Speed Acoustic Communications and Telemetry via Solid Pieces
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Array
(
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[patent_title] => HOME ENERGY MANAGEMENT SYSTEM ON A STICK, CONNECTED TO UTILITY METER
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Array
(
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[patent_title] => METHODS, DEVICES, AND SYSTEMS FOR IMPACT DETECTION AND REPORTING FOR STRUCTURE ENVELOPES
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[rel_patent_id] =>[rel_patent_doc_number] =>) 18/790503 | Methods, devices, and systems for impact detection and reporting for structure envelopes | Jul 30, 2024 | Issued |
Array
(
[id] => 20789028
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[rel_patent_id] =>[rel_patent_doc_number] =>) 18/783747 | METHOD AND SYSTEM FOR FAST PULSE TELEMETRY | Jul 24, 2024 | Pending |
Array
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[patent_title] => COMMUNICATION CONNECTION METHOD FOR CONTINUOUS BLOOD GLUCOSE MONITORING SYSTEM
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[rel_patent_id] =>[rel_patent_doc_number] =>) 18/780590 | Communication connection method for continuous blood glucose monitoring system | Jul 22, 2024 | Issued |
Array
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Array
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[rel_patent_id] =>[rel_patent_doc_number] =>) 18/767114 | Anti-ghosting keyboard | Jul 8, 2024 | Issued |