Prosecution Insights
Last updated: April 19, 2026
Application No. 18/454,213

Environmentally Friendly Blister Package With Contact Adhesive

Non-Final OA §103§112
Filed
Aug 23, 2023
Examiner
LAN, YAN
Art Unit
1782
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Henkel AG & Co. KGaA
OA Round
1 (Non-Final)
63%
Grant Probability
Moderate
1-2
OA Rounds
3y 4m
To Grant
85%
With Interview

Examiner Intelligence

Grants 63% of resolved cases
63%
Career Allow Rate
387 granted / 614 resolved
-2.0% vs TC avg
Strong +22% interview lift
Without
With
+22.0%
Interview Lift
resolved cases with interview
Typical timeline
3y 4m
Avg Prosecution
36 currently pending
Career history
650
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
59.7%
+19.7% vs TC avg
§102
16.8%
-23.2% vs TC avg
§112
18.5%
-21.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 614 resolved cases

Office Action

§103 §112
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 . Election/Restrictions Applicant’s election without traverse of Group I, claims 1-7, in the reply filed on 11/24/2026 is acknowledged. Claims 8-15 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected invention, there being no allowable generic or linking claim. 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. Claims 1-7 are rejected under 35 U.S.C. 112(b) as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor regards as the invention. Claim 1 recites the limitation " a paperboard …the first surface" in line 7. There is insufficient antecedent basis for this limitation in the claim. Claim 1 recites the limitation " a paper substrate …the first surface" in line 9. There is insufficient antecedent basis for this limitation in the claim. In this connection, it appears that applicant may have intended to recite in claim 1 that “(b) a paperboard substrate having a first substrate surface and a second substrate surface, and the contact adhesive is applied on the first substrate surface; …(c) a paper substrate having a first substrate surface and a second substrate surface, and the contact adhesive is applied on the second substrate surface…”. Such interpretation is applied by the examiner for purpose of examination. Claims 2-7 are rejected due to their dependency of claim 1. Appropriate correction and clarification are required. Claim Rejections - 35 USC § 103 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. 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. Claim(s) 1-7 are rejected under 35 U.S.C. 103 as being unpatentable over Krampe et al. (US 6,099,682; “Krampe”) in view of Cheung (US 2021/0009869). Regarding claim 1, Krampe teaches a blister pack (10, col. 1, lines 63-67, col. 2, lines1-11, see Fig. 3 below, col. 12, lines 4-21) comprising: PNG media_image1.png 340 752 media_image1.png Greyscale - (a) a contact adhesive (contact adhesive 16, col. 12, lines 4-21), - (b) a paperboard substrate (the substrate 18, of which suitable material for substrate includes paperboard, paper, composite laminate, col. 7, lines 58-60) having a first substrate surface and a second substrate surface, and the contact adhesive is applied on the first surface (see Fig. 3, col. 12, lines 4-21, the contact adhesive 16 is applied on the first/lower surface of substrate 18, meeting the claimed limitations; See 35 U.S.C. 112(b) rejection of claim 1 made of record in this Office Action); - (c)a paper substrate (the substrate 12, of which the suitable material for substrate includes paper, col. 7, lines 58-60, col. 15, lines 55-60) having a first substrate surface and a second substrate surface, and the contact adhesive is applied on the second surface (see Fig. 3, col. 12, lines 4-21, the contact adhesive 16 is applied on the second/upper surface of substrate 12, meeting the claimed limitations; See 35 U.S.C. 112(b) rejection of claim 1 made of record in this Office Action); and - (d) an article (article 50, Fig. 3, col. 12, lines 4-6); wherein the article (50) is sandwiched and adhered in between the applied contact adhesive of the first surface of the paperboard substrate and the applied contact adhesive of the second surface of the paper substrate (Fig. 3, col. 12, lines 4-6, the article (50) is sandwiched and adhered in between, in the blister pack). Krampe teaches its blister pack with the inclusion of contact adhesive (contact adhesive 16, col. 12, lines 4-21). But Krampe does not specifically teach a contact adhesive having the specific composition as instantly claimed. Cheung teaches a contact adhesive that provides high initial cohesive strength that maintains high strength over an extended period of time and various temperature conditions, making them suitable as pre-applied adhesive that eliminates release liners and reactivation (para [0001]). Cheung teaches its contact adhesive comprises (para [0001] [0008]) (i) a metallocene-catalyzed olefin block copolymer; (ii) a mixture of polyethylene wax and Fischer-Tropsch wax, having a penetration hardness value of less than about 5 dmm at 25°C, measured in accordance with ASTM D3954; (iii) a plasticizer; and (iv) a tackifier, which contact adhesive meets the claimed material limitations of the instantly claimed contact adhesive of instant claim 1. Cheung teaches its contact adhesive is suitable for applying on to various substrate such as paperboard, paper, Kraft board, and corrugated board (para [0056]). It would have been obvious to one of ordinary skill in the art to modify the blister pack of Krampe in view the teachings of Cheung, to select and include the suitable contact adhesive for its blister pack, such as the contact adhesive taught by Cheung (i.e., that comprises (i) a metallocene-catalyzed olefin block copolymer; (ii) a mixture of polyethylene wax and Fischer-Tropsch wax, having a penetration hardness value of less than about 5 dmm at 25°C, measured in accordance with ASTM D3954; (iii) a plasticizer; and (iv) a tackifier; para [0001] [0008] of Cheung), to provide an improved blister pack with high initial cohesive strength that maintains high strength over an extended period of time and various temperature conditions and that eliminates the use of release liners as taught by Cheung (para [0001] [0008] of Cheung), which would have predictably arrived at a satisfactory blister pack that is the same as instantly claimed. The selection of a known material based on its suitability for its intended use supports a prima facie obviousness determination. See MPEP 2144.05. Regarding claim 2, modified Krampe teaches a blister pack having the contact adhesive (as taught by Cheung). Cheung teaches its contact adhesive is essentially free from polypropylene based polymer and/or wax (para [0008]), meeting the claimed limitations. It would have been obvious to one of ordinary skill in the art to modify the blister pack of Krampe in view the teachings of Cheung, to select and include the suitable contact adhesive for its blister pack, such as the contact adhesive taught by Cheung (i.e., as discussed above that meets the claimed material limitations of the instantly claimed contact adhesive), to provide an improved blister pack with high initial cohesive strength that maintains high strength over an extended period of time and various temperature conditions and that eliminates the use of release liners as taught by Cheung (para [0001] [0008] of Cheung). The selection of a known material based on its suitability for its intended use supports a prima facie obviousness determination. See MPEP 2144.05. Regarding claim 3, modified Krampe teaches a blister pack having the contact adhesive (as taught by Cheung). Cheung teaches in its contact adhesive, the metallocene-catalyzed olefin block copolymer which is an ethylene-octene block copolymer (para [0065]), meeting the claimed limitations. It would have been obvious to one of ordinary skill in the art to modify the blister pack of Krampe in view the teachings of Cheung, to select and include the suitable contact adhesive for its blister pack, such as the contact adhesive taught by Cheung (i.e., as discussed above that meets the claimed material limitations of the instantly claimed contact adhesive), to provide an improved blister pack with high initial cohesive strength that maintains high strength over an extended period of time and various temperature conditions and that eliminates the use of release liners as taught by Cheung (para [0001] [0008] of Cheung). The selection of a known material based on its suitability for its intended use supports a prima facie obviousness determination. See MPEP 2144.05. Regarding claim 4, modified Krampe teaches a blister pack having the contact adhesive (as taught by Cheung). Cheung teaches in its contact adhesive, the polyethylene wax and/or Fischer-Tropsch wax have a hardness value of less than or equal to about 3 dmm at 25°C, measured in accordance with ASTM D1321 (para [0041]), meeting the claimed limitations. It would have been obvious to one of ordinary skill in the art to modify the blister pack of Krampe in view the teachings of Cheung, to select and include the suitable contact adhesive for its blister pack, such as the contact adhesive taught by Cheung (i.e., as discussed above that meets the claimed material limitations of the instantly claimed contact adhesive), to provide an improved blister pack with high initial cohesive strength that maintains high strength over an extended period of time and various temperature conditions and that eliminates the use of release liners as taught by Cheung (para [0001] [0008] of Cheung). The selection of a known material based on its suitability for its intended use supports a prima facie obviousness determination. See MPEP 2144.05. Regarding claim 5, modified Krampe teaches a blister pack having the contact adhesive (as taught by Cheung). Cheung teaches its contact adhesive further includes suitable additives, including antioxidant, fillers (para [0046], meeting the claimed limitations. It would have been obvious to one of ordinary skill in the art to modify the blister pack of Krampe in view the teachings of Cheung, to select and include the suitable contact adhesive for its blister pack, such as the contact adhesive taught by Cheung (i.e., as discussed above that meets the claimed material limitations of the instantly claimed contact adhesive), to provide an improved blister pack with high initial cohesive strength that maintains high strength over an extended period of time and various temperature conditions and that eliminates the use of release liners as taught by Cheung (para [0001] [0008] of Cheung). The selection of a known material based on its suitability for its intended use supports a prima facie obviousness determination. See MPEP 2144.05. Regarding claim 6, Krampe teaches in its blister pack, the substrate is of suitable paper material (col. 7, lines 58-60). But Krampe does not specifically teach the inclusion of a paperboard substrate that is selected from the specific group as instantly claimed. Cheung teaches a contact adhesive that provides high initial cohesive strength that maintains high strength over an extended period of time and various temperature conditions, making them suitable as pre-applied adhesive that eliminates release liners and reactivation (para [0001]). Cheung teaches its contact adhesive is suitable for applying on to various paperboard substrate such as Kraft board, and corrugated board (para [0056]), meeting the claimed material limitations of the instantly claimed paperboard of instant claim 6. It would have been obvious to one of ordinary skill in the art to modify the modified blister pack of Krampe in view the teachings of Cheung, to select and include the suitable paperboard substrate for its blister pack, such as those taught by Cheung including Kraft board and/or corrugated board (i.e., as discussed above that meets the claimed material limitations), because Cheung teaches its contact adhesive is suitable for applying on to various paperboard substrate such as Kraft board, corrugated board (para [0056]), which would have predictably arrived at a satisfactory blister pack that is the same as instantly claimed. The selection of a known material based on its suitability for its intended use supports a prima facie obviousness determination. See MPEP 2144.05. Regarding claim 7, Krampe does not specifically teach the thickness of the paper substrate as instantly claimed. Krampe teaches its blister pack includes the suitable paper substrate (col. 7, lines 58-60) and Krampe teaches the thickness of the substrate is a result effective variable in that the substrate can be of a sheet or in other forms/thickness depending on the intended application of the pack (col. 7, lines 29-35). Absent a showing of criticality with respect to thickness of the paper substrate (a result effective variable), it would have been obvious to a person of ordinary skill in the art to adjust the thickness through routine experimentation in order to achieve the desired properties (weight, toughness, and/or flexibility, etc.) of the blister pack once produced, which would have arrived at a workable thickness of the paper substrate that falls within the broad range as instantly claimed, i.e., a thickness of about of about 0.008" (8 point) to about 0.024" (24 point). It has been held that discovering an optimum value of a result effective variable involves only routine skill in the art. In re Boesch, 617 F.2d 272, 205 USPQ 215 (CCPA 1980). MPEP 2144.05. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to YAN LAN whose telephone number is (571)270-3687. The examiner can normally be reached Monday - Friday 7AM-4PM. 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, Aaron Austin can be reached at 5712728935. 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. /YAN LAN/Primary Examiner, Art Unit 1782
Read full office action

Prosecution Timeline

Aug 23, 2023
Application Filed
Feb 19, 2026
Non-Final Rejection — §103, §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
63%
Grant Probability
85%
With Interview (+22.0%)
3y 4m
Median Time to Grant
Low
PTA Risk
Based on 614 resolved cases by this examiner. Grant probability derived from career allow rate.

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