Prosecution Insights
Last updated: April 17, 2026
Application No. 17/071,237

PROCESS OF CHOCOLATE PRODUCTION

Non-Final OA §103
Filed
Oct 15, 2020
Examiner
ZILBERING, ASSAF
Art Unit
1792
Tech Center
1700 — Chemical & Materials Engineering
Assignee
unknown
OA Round
5 (Non-Final)
33%
Grant Probability
At Risk
5-6
OA Rounds
4y 9m
To Grant
60%
With Interview

Examiner Intelligence

Grants only 33% of cases
33%
Career Allow Rate
206 granted / 619 resolved
-31.7% vs TC avg
Strong +27% interview lift
Without
With
+27.2%
Interview Lift
resolved cases with interview
Typical timeline
4y 9m
Avg Prosecution
81 currently pending
Career history
700
Total Applications
across all art units

Statute-Specific Performance

§101
1.5%
-38.5% vs TC avg
§103
57.9%
+17.9% vs TC avg
§102
10.2%
-29.8% vs TC avg
§112
26.0%
-14.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 619 resolved cases

Office Action

§103
Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . DETAILED ACTION Status of Claims Note: The amendment of September 4th 2025 has been considered. Claims 19-21 are cancelled. Claims 1-18 are pending and examined in the current application. Any rejections not recited below have been withdrawn. Claim Rejections - 35 USC § 103 The text of those sections of Title 35 of the U.S. Code not included in this action can be found in a prior Office action. Claims 1-18 are rejected under 35 U.S.C. 103 as being unpatentable over Vieira et al., (WO 2018/189275 A1). Regarding claims 1 and 2: Vieira discloses a method for producing chocolate comprising mixing ingredients into cocoa mass, conching the cocoa mass and measuring the viscosity during the conching by pumping at least a portion of the cocoa mass along a recirculation loop (i.e., feedback loop) having a viscometer, and adding viscosity reducing compounds (e.g., emulsifier, cocoa butter) in order to attain a chocolate with a target viscosity (see Viera abstract; page 12, line 9 to page 13, line 30; page 27, line 34 to page 29, line 49), which meets the claimed limitations. Moreover, Vieira discloses on page 11, line 47 to page 12, line 17 of adding viscosity altering substances (e.g., emulsifiers) until desired viscosity is attained. Recording the amount to setup a standard of content added over viscosity measured, is done with respect to any time a standard is established. Such as, amount of sweetener added to attain desired flavor. -18: Vieira discloses determining the quantity of viscosity-reducing substance includes determining a difference between the measured viscosity value and a target viscosity value, which may be based on previously attained product with target viscosity, associating the difference to a basic quantity of viscosity-reducing substance (e.g., emulsifier, cocoa butter) to be added based on a reference model, the basic quantity having a margin of error extending to a maximum quantity and to a minimum quantity from the basic quantity, and selecting, for the quantity of viscosity- reducing substance to be added, a value different from the basic quantity, but within the margin of error (see Vieira abstract; page 7, line 14 to page 13, line 39; page 38, lines 23-29; page 27, line 34 to page 29, line 49). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ASSAF ZILBERING whose telephone number is (571)270-3029. The examiner can normally be reached on M-F 8:30-5:00. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Erik Kashnikow can be reached on (571) 270-3475. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /ASSAF ZILBERING/Examiner, Art Unit 1792
Read full office action

Prosecution Timeline

Oct 15, 2020
Application Filed
Jan 28, 2023
Non-Final Rejection — §103
Jul 03, 2023
Response Filed
Oct 21, 2023
Non-Final Rejection — §103
Mar 13, 2024
Response Filed
Jul 13, 2024
Non-Final Rejection — §103
Nov 22, 2024
Interview Requested
Nov 28, 2024
Interview Requested
Feb 21, 2025
Examiner Interview Summary
Feb 25, 2025
Response Filed
May 31, 2025
Non-Final Rejection — §103
Sep 04, 2025
Response Filed
Jan 10, 2026
Non-Final Rejection — §103 (current)

Precedent Cases

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Patent 12564198
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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

5-6
Expected OA Rounds
33%
Grant Probability
60%
With Interview (+27.2%)
4y 9m
Median Time to Grant
High
PTA Risk
Based on 619 resolved cases by this examiner. Grant probability derived from career allow rate.

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