Prosecution Insights
Last updated: October 21, 2026
Application No. 17/280,381

CALCIUM COMPOSITION

Final Rejection §103
Filed
Mar 26, 2021
Priority
Sep 28, 2018 — EU 18197538.4 +2 more
Examiner
WORSHAM, JESSICA N
Art Unit
1615
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Performanat GmbH
OA Round
6 (Final)
57%
Grant Probability
Moderate
7-8
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 57% of resolved cases
57%
Career Allowance Rate
426 granted / 753 resolved
-3.4% vs TC avg
Strong +56% interview lift
Without
With
+56.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
47 currently pending
Career history
807
Total Applications
across all art units

Statute-Specific Performance

§101
1.2%
-38.8% vs TC avg
§103
41.9%
+1.9% vs TC avg
§102
13.4%
-26.6% vs TC avg
§112
25.9%
-14.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 753 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 Application 1. Applicants’ arguments/remarks filed 24 July 2026 are acknowledged. Claims 1-3 and 5-10 are currently pending. Claim 4 is cancelled. No amendments have been made. Claims 1-3 and 5-10 are examined on the merits within. Maintained Rejections Claim Rejections – 35 U.S.C. 103 2. 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. 3. Claim(s) 1-3 and 5-10 is/are rejected under 35 U.S.C. 103 as being unpatentable over Hansen (WO2006/072252) in view of Rosendahl et al. (European Journal of Physiology, 2016). Hansen teaches compositions for treating hypocalcemia in cows. See page 1. The composition comprises at least 30 grams of calcium and other minerals, vitamins, additives, carriers and excipients. See page 12. Hansen teaches that a bullet comprising 57.9 % CaCl2 x 6H2O, 23.2% CaSO4 x ½ H2O, 14.4% water, and 4.5% glyceryl PEG ricinolate (coating material) is known. See page 4. The composition comprises a calcium source in a water soluble, dispersible or disintegrable casing composed of cellulose or starch material (i.e., binder excipient). See page 8. The composition comprises at least 30 g of calcium per casing or capsule. See page 12. Hansen does not teach menthol. Rosendahl et al. teach menthol or thymol stimulated the I in Na+ or NH4 + containing solutions in a dose-dependent manner and modulated transepithelial Ca2+ fluxes. See abstract. The two lower concentrations of menthol (10 and 100 μmol·l−1) significantly enhanced the net absorption of Ca2+ by the ruminal epithelium, via mechanisms that probably involve both a direct action on TRP channels and secondary effects on barrier-forming proteins of the paracellular pathway. See page 1349. It would have been obvious to one of ordinary skill in the art as of the effective filing date of the invention to add menthol to the formulation of Hansen to improve calcium absorption. One would have been motivated, with a reasonable expectation of success, to provide a more effective formulation in the treatment of hypocalcemia in ruminants. It would have been well within the purview of the skilled artisan to modify the amounts of each ingredient within known effective amounts and ratios to achieve the desired consistency of product and improvement of calcium absorption. Response to Arguments Applicant's arguments filed 24 July 2026 have been fully considered but they are not persuasive. 4. Applicants argued, “The simultaneous effect of both an increased calcium flux and a decreased paracellular flux was found to be more pronounced at higher calcium concentrations which is unexpected and unpredictable. One would not have any reason to combine Hansens’ suggestion of higher calcium concentrations with Rosendahl’s reporting of the effect of menthol at low/normal calcium concentrations.” In response to applicants’ arguments, Rosendahl teaches that two lower concentrations of menthol (10 and 100 μmol·l−1) significantly enhanced the net absorption of Ca2+ by the ruminal epithelium, via mechanisms that probably involve both a direct action on TRP channels and secondary effects on barrier-forming proteins of the paracellular pathway. See page 1349. Thus Rosendahl provides motivation to add menthol to improve calcium absorption. This coincides with the data found in Table 2. Although Examples A and 2 show a statistically significant increase, Example 1 does not. However the concentration of Ca in Example 1 is between the values of A and 2. Thus not all concentrations result in a statistically significant increase. The same is observed in Table 4 wherein only Example 4 is statistically significant. However, all concentrations tested fall within the claimed amount of at least 5% calcium. It is also noted that Examples A, 1, 2, B, 3, and 4 comprise various other components that are not claimed and thus a side by side analysis cannot be conducted and unexpected superiority cannot be determined. Thus this rejection is maintained. Conclusion 5. THIS ACTION IS MADE FINAL. Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Correspondence 6. No claims are allowed at this time. 7. Any inquiry concerning this communication or earlier communications from the examiner should be directed to JESSICA WORSHAM whose telephone number is (571)270-7434. The examiner can normally be reached Monday-Friday (8-5). 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, Robert Wax can be reached on 571-272-0623. 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. /JESSICA WORSHAM/Primary Examiner, Art Unit 1615
Read full office action

Prosecution Timeline

Show 10 earlier events
Jul 03, 2025
Response Filed
Oct 10, 2025
Final Rejection mailed — §103
Jan 05, 2026
Response after Non-Final Action
Feb 10, 2026
Request for Continued Examination
Feb 12, 2026
Response after Non-Final Action
Feb 24, 2026
Non-Final Rejection mailed — §103
Jul 24, 2026
Response Filed
Oct 05, 2026
Final Rejection mailed — §103 (current)

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

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Prosecution Projections

7-8
Expected OA Rounds
57%
Grant Probability
99%
With Interview (+56.4%)
2y 11m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 753 resolved cases by this examiner. Grant probability derived from career allowance rate.

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