1. Stats
  2. USPTO
  3. TC 2800
  4. Group 2830-2840
  5. Art Unit 2844
  6. Examiner Chang

Examiner Chang Daniel D

2844-CHANG-DANIEL-D

Employment Information

Art Unit:2844 — Electric lamp and discharge devices: systems
Group:2830-2840 — Electrical Circuits and Systems
Classes: 315 — Electric lamp and discharge devices: systems
326 — Electronic digital logic circuitry
343 — Communications: radio wave antennas
257 — Active solid-state devices (e.g., transistors, solid-state diodes)
706 — Data processing: artificial intelligence
711 — Electrical computers and digital processing systems: memory
342 — Communications: directive radio wave systems and devices (e.g., radar, radio navigation)
323 — Electricity: power supply or regulation systems
116 — Signals and indicators
340 — Communications: electrical
Phone:(571) 272-1801
Email:daniel.chang@uspto.gov
Location:VA 22314
Title:Pat Examnr Elctrl Engrg
Service:28 years
Grade:GS-14

Grant Rate and Difficulty Ranking

8
3-Year Grant rate: 94% over 559 cases
Difficulty: Extremely Easy
Difficulty Percentile: 8th

With Examiner Chang, you have a 94% chance of getting an issued patent by 3 years after the first office action. Examiner Chang is an extremely easy examiner and in the 8th percentile across all examiners (with 100th percentile most difficult).

Grant Rate

Grant Rate Timeline

Below is the grant rate timeline for Examiner Chang, where the timeline is relative to the date of the first office action. The three-year grant rate is the percentage of applications granted at three years after the first office action.

Comparison with Art Unit 2844

Examiner Chang's grant rate is higher than that of Art Unit 2844 and higher than that of the USPTO.

Average Office Actions Per Grant
Examiner Chang 0.9
Art Unit 2844 1.0

Interview Benefit

Grant Rate without Interview

Examiner Chang has granted 468 of 497 cases without any applicant-requested interviews for a grant rate of 94%.

Grant Rate with Interview

Examiner Chang has granted 58 of 62 cases with at least one applicant-requested interview for a grant rate of 94%.

Interview Benefit

With Examiner Chang, conducting an interview does not change your chance of getting your patent granted.

Recent Dispositions

Recent Dispositions

Number Title OA Rejections Status IFW
18551574 Method For Configuring A Luminaire System And Device For Use Therein Rejection information available with a Premium Stats subscription. See our pricing. Patented View
18067153 Controllable Multiple Lighting Element Fixture Patented View
18437535 Hysteresis Circuit, Emergency Lighting Circuit And Lighting Device Patented View
17927448 A Fast Controller Device For Controlling A Quantum Processor Patented View
18895335 Display Apparatus Patented View
18393736 Circuits, Machines And Systems That Heal Patented View
18670175 Variable Input Device Utilizing Time-Of-Flight Of An Optical Transmission Through A Discontinuous Optical Guide Patented View
18409986 Ultra-Broadband Loop Antenna For Wireless Communication And Energy Transceiver Patented View
18612278 Fused Memory And Arithmetic Circuit Patented View
18526868 Controller And Luminaire Having Controller Patented View
18228454 Methods And Apparatus To Supply Power To Led Circuitry Patented View
18738893 Optimizing Central Processing Unit (Cpu) Cache Memory Dc Power With Rail Voting Scheme Patented View
18313427 Customizable Logic Cell With Methods To Form Same Patented View
18509526 High-Voltage Light String Controller Patented View
17711795 Systems And Methods For Dynamic Power And Thermal Management For Programmable Logic Devices Patented View
18784419 Off-Fixture Lighting Control Circuit Patented View
18284724 Lighting Control Based On A Co-Located Active Antenna Array Patented View
18154653 Headlamp With An Ai Unit Patented View
18498852 Buffer Circuit, Semiconductor Device, And Signal Processing System Including Semiconductor Device Patented View
18351303 Compact Frequency Reconfigurable Array Antenna Based On Diagonally Placed Meander-Line Decouplers And Pin Diodes For Multi-Range Wireless Communication Patented View
18678809 Light Source Device, Observation System, And Color-Balance Correction Method Patented View
18610608 Light-Emitting Diode Circuit With Parallel Sequence Function, Light-Emitting Diode Circuit Package, And Light-Emitting Diode Light String Patented View
18540935 Logic Circuit And Front End Module Including The Same Patented View
17884190 Systems And Methods For Providing Dynamic Lighting Patented View
17879670 Connectivity Layer In 3d Devices Patented View
18448129 Modified Radar Antenna Array Patented View
18233724 Led Circuits And Assemblies Patented View
18595937 Dimmer-Type Dimming Power Supply Patented View
18220976 Radiator For Terahertz Electromagnetic Radiation Patented View
18346273 Low Voltage Differential Signaling Receiver Patented View
18433824 Systems And Methods For A Multichannel Navigation Light Patented View
18500903 Systems And Methods For Providing Power Supply To Current Controllers Associated With Led Lighting Patented View
18390667 Control Device Having An Integral Reflecting Structure For A Sensing Circuit Patented View
18334114 Electronic Chip Identity Patented View
18339989 Universal Serial Bus Voltage Discharge Patented View
18559165 Power Control Of A Light Animation Performed On A Light Module Patented View
18491830 Signal Analysis Protocol Changing Method For Wireless Lamp Patented View
18339232 Fast Common Mode Charging Patented View
18516615 Buffer Circuit Capable Of Reducing Noise Patented View
18878092 Power Consumption Control Circuit, Chip And Electronic Device Patented View
18265593 Efficient Muller C-Element Implementation For High Bit-Width Asynchronous Applications Patented View
18144076 Providing Industrial Network Reliability Using Luminaires Abandoned View
19079178 Luminaire Safety System Patented View
18288901 Phase Shifter, Antenna And Electronic Device Patented View
18343406 Method And System For Integrated Controlling To A Plurality Of Lighting Devices And The Lighting Devices Patented View
18179957 Electronic Circuitry Patented View
18018409 Signal Transmission Device, Electronic Device, Vehicle Patented View
19015577 Ambient Lamp Apparatus And Lighting-Effect Layer Coordinated Playback Method And Device, Medium Patented View
18984779 Splicing Lamp, Detection Executing Method, And Detection Driving Method Patented View
18026228 Dual-Polarized Antenna And Electronic Device Patented View

Appeals Statistics

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