Prosecution Insights
Last updated: April 19, 2026
Application No. 19/291,231

PROCESSING OF STARCH-PROTEIN PULSES

Non-Final OA §103
Filed
Aug 05, 2025
Examiner
PRAKASH, SUBBALAKSHMI
Art Unit
1793
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Katholieke Universiteit Leuven
OA Round
1 (Non-Final)
45%
Grant Probability
Moderate
1-2
OA Rounds
3y 9m
To Grant
82%
With Interview

Examiner Intelligence

Grants 45% of resolved cases
45%
Career Allow Rate
316 granted / 702 resolved
-20.0% vs TC avg
Strong +37% interview lift
Without
With
+36.7%
Interview Lift
resolved cases with interview
Typical timeline
3y 9m
Avg Prosecution
46 currently pending
Career history
748
Total Applications
across all art units

Statute-Specific Performance

§101
0.7%
-39.3% vs TC avg
§103
51.4%
+11.4% vs TC avg
§102
8.7%
-31.3% vs TC avg
§112
30.8%
-9.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 702 resolved cases

Office Action

§103
DETAILED ACTION 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 . Status of the Application Receipt is acknowledged of the amendment and response filed 1/12/2026. Claims 1,2,6 and 12-24 are pending in the application. Election/Restrictions Applicant’s election without traverse of Group I claims 1,2,6 and 12-24 in the reply filed on 1/12/2026 is acknowledged. Applicant canceled non-elected claims in the response. Information Disclosure Statement The information disclosure statement (IDS) submitted on 8/5/2025 was filed before the first office action. The submission is in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement is being considered by the examiner. Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention. Claim 1,2,6 and 12-24 are rejected under 35 USC 103 as being unpatentable over Rockland et al (US3869556A) in view of Shmulewitz et al. (US 20210051975 A1), cited in an IDS. Regarding claim 1,2 and 20, Rockland (abstract, column 3 lines 1-25) discloses a method of processing chickpea, the method comprising soaking raw garbanzo beans (meeting the limitation of produce) for about 24 hours at ambient temperature and atmospheric pressure in an aqueous hydrating medium in making quick cooking garbanzo beans. Rockland discloses sodium bicarbonate in a concentration range of 0.25 to 0.75 percent, and sodium carbonate in a concentration range of 0.083 to 0.25 percent. These agents provide an initial pH of about 9 in the hydration medium. It is preferred that the hydrating medium be slightly alkaline for best results. The carbonate and bicarbonate, however, not only act as alkaline agents but also act as protein dissociating, solubilizing or tenderizing agents. After the beans have been hydrated, they are separated from the hydrating medium and rinsed with water to remove excess medium from the surface of the beans, and further washed. Shmulewitz discloses ([0075] –[0080]) soaking whole chickpeas in water for up to 24 hours, wet milling the whole chickpeas to produce a chickpea flour, mixing the chickpea flour with water at 40 to 60° C. to produce a heated chickpea mixture, for up to 6 hours, adding an alkaline agent having a pH of above 7.5 separating a portion of insoluble starch from the basic chickpea mixture to result in a processed chickpea protein enriched mixture. As the claim includes both “produce” and “produce tissues” limitations, both references are considered relevant. It is well known that starch in pulses typically has a gelatinization temperature of 70 deg to 80 deg C. If a protein fraction needs to be separated easily from starch, a temperature below gelatinization temperature to maintain intact starch bodies is required. One of ordinary skill in the art looking to separate starch and protein fractions in processed chickpea would have modified the soaking method in Rockland with mixing/stirring method of hydration under conditions as disclosed in Shmulewitz, with a reasonable expectation of success. Retention of semi-crystalline structure and Maltese cross pattern in the starch bodies when viewed under cross-polarized light, is expected under these conditions. Rockland and Shmulewitz in combination, disclose a method of processing produce ( chickpea (Cicer arietinum)), or tissues thereof, the method comprising: a) continuously stirring the produce or produce tissues for a period between 1 to 6 hours at a temperature between 50°C and 70°C in an aqueous bicarbonate solution or bicarbonate/carbonate solution containing 0.5% to 10 weight/weight percent bicarbonate salt; b) removing the solution containing off-flavor compounds from the processed produce or produce tissues; and c) washing the processed produce or produce tissues; wherein the method substantially diminishes off-flavor while preserving the semi-crystalline structure of starch bodies within the produce or produce tissues. Regarding claim 6, Shmulewitz discloses a grinding step as claimed which releases starch bodies, protein bodies, and fibers into a dry flour mixture [0156]. Regarding claim 12, as discussed with reference to claim 1, Rockland discloses an aqueous bicarbonate solution or bicarbonate/carbonate solution comprising bicarbonate salt (MHCO3), or bicarbonate salt (MHCO3) and carbonate salt (M2CO3), or bicarbonate salt (MHCO3), at pH 9 which is within the claimed range of 7-10, and Shmulewitz discloses and hydroxide salt (MOH), wherein M is an alkali metal cation, and with a pH of 7.5 [0075]. Regarding claims 13, 14, 16 and 23, in view of the disclosures in Rockland and Shmulewitz, it would have been obvious to one of ordinary skill in the art to use an alternative food grade alkali for pH adjustment with a reasonable expectation of success. Shmulewitz discloses interchangeably using potassium hydroxide, sodium hydroxide, Calcium hydroxide, or sodium bicarbonate [0071]. A calcium salt for example would provide the required Ca++ in claim 16. Regarding claim 15, Rockland in view of Shmulewitz, as discussed above, discloses that produce tissue is stirred for at least 30 minutes (up to 6 hours) in the bicarbonate solution or bicarbonate/carbonate solution at a temperature in a range of 40 deg to 60 deg C, which overlaps the claimed range. Regarding claim 17, Rockland and Shmulewitz in combination cover whole pulses, as split pulses and chopped solids thereof which typically have a Feret diameter (Dmax) of 1 to 4 mm, or a combination thereof. Regarding claim 18 and 19, 21 and 22 as the pulse material in Rockland in view of Shmulewitz having been treated by the claimed method has off odors removed and is expected to have a hexanal level and properties as claimed, with retention of Maltese cross pattern in the starch bodies when viewed under cross-polarized light, thereby enabling subsequent separation of intact starch bodies. Regarding claim 24, calcium salts are routinely added to soaking water in preparing plant materials for processing to preserve firmness (reduce material loss). A patentable distinction is therefore not discerned. No unexpected effects are disclosed. Claims 1,2, 6 and 12-24 are therefore prima facie obvious in view of the art. Correspondence Any inquiry concerning this communication or earlier communications from the examiner should be directed to Subbalakshmi Prakash whose telephone number is (571)270-3685. The examiner can normally be reached Monday-Friday. 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, Emily Le can be reached at (571) 272-0903. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /SUBBALAKSHMI PRAKASH/Primary Examiner, Art Unit 1793
Read full office action

Prosecution Timeline

Aug 05, 2025
Application Filed
Feb 07, 2026
Non-Final Rejection — §103 (current)

Precedent Cases

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Patent 12582133
USE OF ST GAL(+) BACTERIA FOR PRODUCING A FERMENTED MILK PRODUCT WITH A RELATIVELY HIGH STABLE PH
2y 5m to grant Granted Mar 24, 2026
Patent 12575582
PRODUCT AND METHOD OF PRODUCING DAIRY PRODUCTS COMPRISING DAIRY-DERIVED EMULSIFYING SALTS
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Patent 12570970
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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
45%
Grant Probability
82%
With Interview (+36.7%)
3y 9m
Median Time to Grant
Low
PTA Risk
Based on 702 resolved cases by this examiner. Grant probability derived from career allow rate.

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