Prosecution Insights
Prosecution Insights
Tech Center 1600 • Art Units: 1638 1662
This examiner grants 84% of resolved cases
Li Zheng is an examiner in Tech Center 1600 and Art Unit 1638 with a high volume of 1279 resolved cases. The allowance rate for these applications is 83.6 percent, demonstrating a strong tendency toward granting patents in this technical area. Applicants can expect a median days to allowance of 937, which serves as a primary metric for managing client expectations regarding the length of the prosecution cycle.
The impact of examiner interviews is positive, with an interview lift of 12.9 percent. Although the baseline allowance rate of 83.6 percent is already high, the 12.9 percent lift suggests that direct engagement can still provide a meaningful advantage in overcoming any remaining hurdles. These figures, derived from 1279 resolved cases, offer a comprehensive and reliable view of the prosecution environment in Art Unit 1638. Practitioners should use the 937-day median and the 83.6 percent allowance rate to benchmark their own performance and strategy when appearing before this examiner.
| App # | Title | Status | Assignee |
|---|---|---|---|
| 18755523 | PLANTS WITH INCREASED WATER USE EFFICIENCY | Non-Final OA | The Regents of the University of California |
| 18980117 | Wheat Variety PMWH111720248 | Final Rejection | BASF SE |
| 18980168 | Wheat Variety PMWH149312414 | Final Rejection | BASF SE |
| 18986369 | MODIFIED VIP3 POLYPEPTIDES | Non-Final OA | Syngenta Crop Protection AG |
| 18527747 | VARIETY CORN LINES | Final Rejection | SYNGENTA CROP PROTECTION AG |
| 18978476 | ENGINEERED PESTICIDAL PROTEINS AND METHODS OF CONTROLLING PLANT PESTS | Non-Final OA | Syngenta Participations AG |
| 18253652 | Methods and Compositions for Generating Dominant Brachytic Alleles Using Genome Editing | Final Rejection | Monsanto Technology LLC |
| 18008935 | RIBOSWITCH MODULES AND METHODS FOR CONTROLLING PROTEIN EXPRESSION IN PLANTS | Non-Final OA | Massachusetts Institute of Technology |
| 16095207 | NOVEL CRISPR ENZYMES AND SYSTEMS | Final Rejection | Massachusetts Institute of Technology |
| 18292125 | PLANTS WITH IMPROVED DIGESTIBILITY AND MARKER HAPLOTYPES | Non-Final OA | KWS SAAT SE & Co. KGaA |
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