The Delhi High court in its order dated 21st May, 2024, upheld Honeywell International Inc.’s appeal against the refusal order issued by the Assistant Controller of Patents and Designs. The Court found that the refusal order violated principles of natural justice and was arbitrary.
BACKGROUND OF THE CASE
An Indian national phase application, titled “ORGANIC FLUORESCENT COMPOSITIONS” (application number – 3150/DELNP/2010) having a set of 1 -10 claims was filed on May 05, 2010. An examination report was issued on July 16, 2015 by the Controller of Patents (herein Respondent in this case). The major objection raised in the first examination report (FER) were as follows:
- a) Claims lack inventive step in view of the cited prior art references;
- b) Claims 4-6 falls within the purview of non – patentable subject matter under sec (3) (d); and
- c) Claims 1-3 falls within the purview of non – patentable subject matter under sec (3) (e).
The appellant filed a response to the first examination report with amended or revised set of claims on November 20, 2015. The appellant deleted claim nos. 4 to 7 and amended claims 1 and 8 to 9. The Respondent, on 1 December, 2016, issued a hearing notice appointing a hearing to be held on 20 December, 2016. A post hearing written submission was filed on 26th December 2016, along with a fresh set of amended claims. In the post hearing written submission, the scope of the claims was changed from composition claims to compound claims.
An impugned order was issued on April 28, 2017, refusing the application on the grounds that the scope of the amended claims was beyond the originally filed claims (rejected under section 59). The Appellant filed an appeal to the IPAB against the order April 28, 2017, passed by the Respondent rejecting the grant of the Appellant’s Indian patent application numbered 3150/DELNP/2010. However, as the IPAB had been dissolved the case was transferred to Delhi High court.
DELHI HIGH COURT DECISION
The Delhi High court carefully compared the claims prior and post amendments. The original claim was for a composition including an organic fluorophore with a structure defined by Formula I. The amended claim, however, focused solely on the organic compound itself, with the term “composition” removed for clarity. After carefully analysis, the Court noted that the amendment did not introduce a new compound, as Formula I remained unchanged. The claim described a single organic compound with various chemically linked components, not a mixture of different compounds, and thus did not violate Section 3(e) of the Act.
Excerpts from the decision:
- It is quite clear from the comparison of originally filed claims and the amendment thereto that the original claim of a composition comprising the compound had been simply pared down [narrowed down] to the claim in the compound itself.
- The comparison of claim 1 before and after amendment would show that formula I was the same and therefore, the compound itself, and there was no different compound that had been claimed. Just the word “composition” had been deleted.
The Delhi High court relied on Allergan Inc. v. The Controller of Patents, 2023: DHC:515, relevant portions of which are extracted as under:
“42. The exact ambit of the scope of a claim in a patent has been the subject of judicial decisions, to which I have already adverted. As I have already noted, the claims and complete specifications in a patent have to be read together and as a whole. The claims have to be understood in the light of the complete specifications. They form an integrated whole, and cannot be treated as two distinct parts of one document. The claim by itself, and de hors the complete specifications which accompany it, cannot convey, to the Court, the exact scope of the claim.
- The very use of the expression “scope of a claim” in the concluding part of Section 59(1) would, therefore, in my considered opinion and keeping in mind the avowed purpose of the Patents Act, require taking into consideration the complete specifications of the pre-amended claim, and not merely a textually cabined reading of the pre- amended claims themselves, de hors the complete specifications.
- While, therefore, examining whether the amended claim falls wholly within the scope of the specification in the pre-amended claim, therefore, the Court, in my opinion, cannot eschew, from consideration, the complete specifications in the pre-amended claim.” (emphasis added)
The court stated that while interpreting “scope of a claim” as mentioned in Section 59(1) of the Act, claims have to be read along with the complete specifications, together and as a whole.
The Delhi High further stated that there was no reason that it ought to have been rejected under Section 59(1) of the Act. For ease of reference, Section 59(1) is extracted as under: “59.
Supplementary provisions as to amendment of application or specification. (1)No amendment of an application for a patent or a complete specification or any document relating thereto shall be made except by way of disclaimer, correction or explanation, and no amendment thereof shall be allowed, except for the purpose of incorporation of actual fact, and no amendment of a complete specification shall be allowed, the effect of which would be that the specification as amended would claim or describe matter not in substance disclosed or shown in the specification before the amendment, or that any claim of the specification as amended would not fall wholly within the scope of a claim of the specification before the amendment.” (emphasis added)
The Delhi High Court directed the Respondent to examine the application within three months from the receipt of the order and to schedule a hearing for the appellant within that timeframe.
CONCLUSION
The present order emphasizes the need for a comprehensive evaluation of claims, ensuring that procedural requirements align with substantive patent law principles. The limitations of the claims (pre and post amendments) need to be compared carefully before passing any impugned order, as converting the preamble of the claims from composition to product which has been clearly disclosed in the as filed specification and original claims does not contravene Section 59(1) of the Patents Act. Further such amendments are permissible as it refines or narrow the original claims, without introducing any new matter not disclosed in the original claims or specification.
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