Listed by the USPTO as CHEN, CHANGRU
Tech Center 3600 • Art Units: 1759 1796 3631
This examiner grants 49% of resolved cases
CHEN, CHANGRU is a USPTO patent examiner in tech center 3600 and art unit 1759. The record includes 109 resolved cases, an allowance rate of 48.6%, and a median of 1312 days to allowance. The interview lift is 40.7%, indicating a substantial difference in outcomes associated with interviews in the available data.
The listed companies are Hoffmann-La Roche Inc., CJ CheilJedang Corporation, and Samsung Electronics Co., Ltd. The listed firms are Brooks Kushman P.C., EVERSHEDS SUTHERLAND (US) LLP, and FERENCE & ASSOCIATES LLC. The profile supports giving interview planning meaningful attention, while the median time to allowance should inform client expectations and prosecution scheduling.
| App # | Title | Status | Assignee |
|---|---|---|---|
| 18292865 | PARTICLE COUNTER AND METHOD FOR COUNTING PARTICLES IN A STERILIZATION TUNNEL OF A MEDICAMENT FILLING SYSTEM | Non-Final OA | Hoffmann-La Roche Inc. |
| 18684628 | CART TREATMENT MODULE | Non-Final OA | CJ CHEILJEDANG CORPORATION |
| 18404664 | DETACHABLE CHEMICAL FILTERS | Non-Final OA | Samsung Electronics Co., Ltd. |
| 17664110 | RECORDING DEVICE | Final Rejection | SEIKO EPSON CORPORATION |
| 18733966 | VOLATILE COMPOSITION DISPENSER WITH REFILLABLE CARTRIDGE AND CLOSE-UP ACTIVATION | Non-Final OA | The Procter & Gamble Company |
| 18574348 | ULTRAVIOLET LIGHT IRRADIATION SYSTEM AND CONTROL METHOD | Non-Final OA | NIPPON TELEGRAPH AND TELEPHONE CORPORATION |
| 18605676 | ULTRASONIC-ASSISTED HYDROGEN PEROXIDE STERILIZATION METHOD AND DEVICE | Non-Final OA | ZHEJIANG UNIVERSITY |
| 18618699 | COMPONENT SANITIZER | Non-Final OA | Lenovo (United States) Inc. |
| 18736718 | FIXATION ELEMENT, REPROCESSING TRAY, AND METHOD OF REPROCESSING A MEDICAL DEVICE | Non-Final OA | OLYMPUS Winter & Ibe GmbH |
| 18443511 | Skin Disinfectant Wipe | Final Rejection | Becton, Dickinson and Company |
| 18573907 | PEROXIDE-ENHANCED GERMICIDAL IRRADIATION FOR THE TREATMENT OF AIRBORNE AND SURFACE-ASSOCIATED CONTAMINANTS | Final Rejection | THE REGENTS OF THE UNIVERSITY OF COLORADO, A BODY CORPORATE |
| 18947225 | ARRANGEMENT FOR THE CONTAMINATION-FREE INTRODUCTION OF A STERILE OBJECT FROM A CONTAINER INTO A CONTAINMENT AND METHOD THEREFOR | Non-Final OA | Pharma Integration S.R.L. |
| 18693129 | COMPOSITION AND COMPOSITE ARTICLE FOR FORMING NITRIC OXIDE | Non-Final OA | STERILE STATE, INC. |
| 17776572 | BUNG FOR INSULATING A CONTAINER AND COOLING METHODS | Non-Final OA | BIOSAFE S.A. |
IP Author analyzes examiner patterns and generates tailored response strategies with the highest chance of allowance.
Build Your Strategy48.6% of resolved applications examined by Changru Chen were allowed (109 resolved cases), compared with 69.3% across Art Unit 1759 over the last five years.
This examiner's interview lift is +40.7 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.
Applications allowed by Changru Chen took 1,312 days on average from filing to allowance.
Changru Chen examines applications in Art Unit 1759 in Tech Center 3600 (Transportation, E-Commerce & Mechanical Systems).
