Prosecution Insights
Last updated: April 19, 2026
Application No. 18/289,536

ISOLATOR HAVING A BALL TYPE OPERATOR

Non-Final OA §112
Filed
Dec 24, 2024
Examiner
MARSH, STEVEN M
Art Unit
3632
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Chamsol Tech Co. Ltd.
OA Round
1 (Non-Final)
79%
Grant Probability
Favorable
1-2
OA Rounds
2y 4m
To Grant
87%
With Interview

Examiner Intelligence

Grants 79% — above average
79%
Career Allow Rate
1238 granted / 1560 resolved
+27.4% vs TC avg
Moderate +7% lift
Without
With
+7.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 4m
Avg Prosecution
35 currently pending
Career history
1595
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
35.2%
-4.8% vs TC avg
§102
36.0%
-4.0% vs TC avg
§112
27.5%
-12.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1560 resolved cases

Office Action

§112
DETAILED ACTION This is the first office action for US Application 18/289,536 for an Isolator Having a Ball Type Operator. 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 . Claim Objections Claim 5 is objected to because of the following informalities: Line 2 of claim 5, the word “is” should be deleted and replaced with - - are - -. Appropriate correction is required. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claims 1-8 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Claim 1 recites the limitation "the bottom surface" in line 3. There is insufficient antecedent basis for this limitation in the claim. Claim 1 recites the limitation "the floor" in line 4. There is insufficient antecedent basis for this limitation in the claim. Claim 1 recites the limitation "the top surface" in line 5. There is insufficient antecedent basis for this limitation in the claim. Claim 1 recites the limitation "the central part" in line 10. There is insufficient antecedent basis for this limitation in the claim. Claim 1 recites the limitation "the rolling recess" in line 10. There is insufficient antecedent basis for this limitation in the claim. The antecedent basis in the claim is for an upper rolling recess and a lower rolling recess. Claim 1 recites the limitation "the upper edge" in line 11. There is insufficient antecedent basis for this limitation in the claim. Claim 1 recites the limitation "the edge of the inflected rolling surface" in lines 15 and 16. There is insufficient antecedent basis for this limitation in the claim. Claim 8 recites the limitation "the elastic coating 42 on the central rolling surface" in lines 1 and 2. There is insufficient antecedent basis for this limitation in the claim. Claim 8 recites the limitation "the center" in line 2. There is insufficient antecedent basis for this limitation in the claim. Allowable Subject Matter Claim 1 would be allowable if rewritten or amended to overcome the rejection(s) under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), 2nd paragraph, set forth in this Office action. Claims 2-8 would be allowable if rewritten to overcome the rejection(s) under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), 2nd paragraph, set forth in this Office action and to include all of the limitations of the base claim and any intervening claims. The following is a statement of reasons for the indication of allowable subject matter: Isolators with a ball type operator comprised of upper and lower panels with upper and lower recesses, respectively, and a ball operator provided between the recess are known in the art. The prior art also discloses at least the lower rolling recess as comprising a central rolling surface on a central part of the lower rolling recess and a disengagement prevention wall, but does not disclose a peak line formed along an upper edge of the central rolling surface, and an inflected rolling surface formed around the peak line and inflected against the central rolling surface extending outward horizontally or downward from the peak line, Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. US 0951028 to Schar US 2024/0240486 to Deigert US 2006/0260221 to Kemeny US 6505806 to Glaesener US 5081806 to Pommelet US 5689919 to YanoUS 6123313 to Otsuka US 9963901 to Kanzaki US 5905804 to Lee US 5804776 to Bizlewicz US 3146979 to Keetch The above prior art discloses various isolators utilizing a ball type operator. Any inquiry concerning this communication or earlier communications from the examiner should be directed to STEVEN M MARSH whose telephone number is (571)272-6819. The examiner can normally be reached Mon-Thurs 9 am-7:30 pm. 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, Terrell McKinnon can be reached at 571-272-4797. 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. STEVEN M. MARSH Primary Examiner Art Unit 3632 /STEVEN M MARSH/Primary Examiner, Art Unit 3632
Read full office action

Prosecution Timeline

Dec 24, 2024
Application Filed
Mar 07, 2026
Non-Final Rejection — §112 (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

1-2
Expected OA Rounds
79%
Grant Probability
87%
With Interview (+7.4%)
2y 4m
Median Time to Grant
Low
PTA Risk
Based on 1560 resolved cases by this examiner. Grant probability derived from career allow rate.

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