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  • The opinions, commentary and characterizations provided to this online forum by the authors and moderators are provided for encouraging discussion, thought and debate on important post grant issues. These postings are in no way representative of the opinions of Oblon Spivak et al., or its clients.

Archive for the ‘Claim Interpretation’ Category

PTO Scolded for Lax Patent Reexamination Practices

Posted On: Jan. 17, 2013   By: Scott A. McKeown
AIA technical amendmentFailure to Focus Means Plus Function Debate in Patent Reexamination

Last week in In re Avid Identification Systems Inc., the CAFC affirmed the USPTO’s rejection of certain claims of U.S. Patent 5,499,017 in ex parte patent reexamination. Of particular note in the appeal was the proper construction of  ”means for storing.” The Patentee argued that the “means for storing” language invoked 35 U.S.C. § 112 6th paragraph (now known as 35 U.S.C. § 112(f)), and as such, required particular structure of the specification. The USPTO took the position that, since this claim construction position was not seasonably raised in the briefing to the PTAB, nor was the required claim mapping presented in the opening brief as required by 37 C.F.R. § 41.37(c)(1)(v), that the argument was waived for purposes of appeal.

In a stinging dissent, Judge Clevenger found the PTAB’s practice to be “random” as it relates to the proper examination of means-plus-function (MPF) claims. He was particularly disappointed that the PTO chose to “hide behind” 37 C.F.R. § 41.37(c)(1)(v), labeling such behavior a public detriment. (decision here)

The fact pattern in Avid is troubling on many levels. Not only is such a practice a public detriment as to predictability, but interpreting MPF claims to have a broader scope is arguably an ultra vires action in the context of patent reexamination. And, above all else, a simple rule change would avoid most such issues from reaching the appellate level. Read the rest of this entry »

USPTO to Require Means Plus Function Claims for Software Related Patents?

Posted On: Jan. 7, 2013   By: Scott A. McKeown
USPTOFunctional Claim Drafting Practices Considered by USPTO

Despite public misconceptions to the contrary, software is not patentable. Of course, aspects of software, or “software related” patents exist in which an otherwise statutory apparatus or product is claimed that includes computer implemented functionality. In an effort to enhance the “quality” of these software related patents, the USPTO issued a notice last Thursday in the Federal Register entitled: Request for Comments and Notice of Roundtable Events for Partnership for Enhancement of Quality of Software Related Patents.

The Notice “sets forth several topics to begin the Software Partnership discussion. The first topic relates to how to improve clarity of claim boundaries that define the scope of patent protection for claims that use functional language.”

Reading through the tea leaves, the USPTO appears quite interested in exploring means-plus-function claiming with the software community. Since this style of claiming directly links the disclosed structure of the patent specification (algorithmic in the case of computer implemented features), it may be that the Office is proposing to rein in the scope of software claims by requiring the more narrow claim type. Thus, the “enhancement in quality” may result in future software related patents becoming more difficult to assert based on their narrower scope. To this end, the USPTO proposed the following talking points for the upcoming roundtable: Read the rest of this entry »

CAFC Again Reverses USPTO on BRI Claim Interpretation

Posted On: Oct. 4, 2012   By: Scott A. McKeown
BRISpecification Crucial in Proper BRI Analysis

It is well established that the USPTO applies a broadest reasonable claim interpretation to patent applications and patents subject to post issuance proceedings. The abbreviation “BRI” is often used as a short hand reference to the full claim interpretation standard, which is the broadest reasonable interpretation in light of the specification, from the perspective of one skilled in the relevant art. (MPEP 2111)

Unfortunately, the shorthand notation “BRI” is often mistaken as the standard. That is to say, the proper test is not simply a “broadest reasonable interpretation” of claims in a linguistic sense. Rather, the broadest reasonable interpretation of the claims that is consistent with the specification of the subject application or patent. While it is true that limitations from a patent specification may not be imported to the claims, the USPTO often times confuses this prohibition with the required consideration of the specification in a proper BRI analysis.

In 2010, the CAFC cautioned the USPTO on reading claims independent of a patent specification during patent reexamination in In re Suitco Surface (CAFC 2010). Earlier this week, the agency was reversed again, due to the guidance of the patent specification in In re Abbott Diabetes Care Inc. (here) Read the rest of this entry »

Perceived Patent Reexamination Misstep Haunts Plaintiff

Posted On: Jun. 6, 2012   By: Scott A. McKeown

InconsistencyA successful reexamination from a defendant perspective does not always result in an overt claim change or cancellation. In other words, even where claims are confirmed, statements in the reexamination record that are inconsistent with arguments made in a concurrent litigation may provide key evidence necessary to prevail during a Markman hearing, or offer new, non-infringement positions to defendants.

Late last month, in Kilopass Technology Inc., v. Sidense Corp (NDCA), the Court cited to seemingly inconsistent statements made by a Patentee during the patent reexamination Read the rest of this entry »

BPAI Reversal of All Rejections Dooms Patent in Reexamination

Posted On: May. 30, 2012   By: Scott A. McKeown
BPAIInability to Properly Examine Means-Plus-Function Claims in Patent Reexamination Creates Perplexing Result

Unlike most claims in patent reexamination, means-plus-function claims may not be properly accorded a broadest reasonable claim interpretation. Instead, as outlined by MPEP 2181-2183, the structure and acts described in the underlying patent specification embody the statutorily mandated scope. That is to say, the structure described in the patent specification as linked to the claimed function is essentially incorporated into the claim. Absent this analysis of the specification for structural support, there can be no structural limits to the claim by which to properly compare the prior art. See MPEP 2183 (C)

Yet, for improperly supported, originally issued means-plus-function claims, a rejection pursuant to 35 U.S.C. § 112 2nd paragraph is not possible in patent reexamination. This is because such a rejection would not be based on “patents and printed publications” as mandated by the patent reexamination statutes. In other words, where a means-plus-function claim examined in patent reexamination lacks any structural support in the patent specification, the USPTO is unable to properly examine the claim. (See my 2010 post on this “Tale of Two Statutes” here)

In a decision last week, the Board of Patent Appeals & Interferences (BPAI) was faced with this statutory conundrum in the inter partes patent reexamination of U.S. Patent 6,446,045. (decision here) The ‘045 Patent is owned by Function Media L.L.C. and is currently asserted against Google Inc. (on appeal to the CAFC).

In the reexamination of the ‘045 Patent all claims were rejected in view of applied art.  However, as the BPAI found the means-plus-function claims unsupported, all of the outstanding rejections were reversed as speculative. Taking the estoppel of inter partes patent reexamination into account (35 U.S.C. § 315), did Google win or lose?

Read the rest of this entry »

Post Grant Petitions to More Closely Scrutinize Means Plus Function Claims

Posted On: Feb. 23, 2012   By: Scott A. McKeown
means plus functionMPF Claim Interpretation Required to Initiate New AIA Proceedings

In past posts I have pointed out that in analyzing requests for patent reexamination, Examiner’s are trained to apply a Broadest Reasonable Interpretation (BRI) to patented claims. Unfortunately, over emphasis upon this standard ignores the fact that the scope of certain patent claims are defined by 35 U.S.C. § 112, 6th paragraph, and may not be interpreted in this manner, namely—“means/step-plus-function” claims.

In my experience, the USPTO will almost always grant a reexamination request for MPF claims by applying an improper BRI analysis of the recited function alone. In fact, I have never seen a Request denied for failure to provide the necessary structural mapping between the specification and MPF claims. Of course, such a mapping is expressly required when appealing a rejection to the Board of Patent Appeals & Interferences (BPAI).

As a result, Patentees will often argue for proper claim interpretation under 112 6th paragraph throughout the reexamination, only convincing the Board as to the proper interpretation of the MPF claims years later. Likewise, by not forcing the issue at the time of the Request, Patentees may only resort to arguing 112 6th at the appeal stage (after failing to distinguish art under the BRI standard); either situation is a waste of Office resources. One such case of a Patentee changing course was illustrated yesterday in Ex Parte EON Corp. IP Holdings LLC. Read the rest of this entry »

CAFC Again Considers Patent Reexamination Disclaimer

Posted On: Jan. 31, 2012   By: Scott A. McKeown
disclaimerDisclaimer Results in Reversal of $56 Million Dollar Damage Award

As previously discussed, the CAFC has agreed to reconsider Marine Polymer Technologies, Inc. v. HemCon, Inc. (here) en banc. The Court will reconsider whether or not intervening rights are created for a claim that is not literally amended in a post grant proceeding by a change in verbiage, but instead, by operation of prosecution disclaimer on the part of the Patentee. (earlier post here)

Interestingly, last week the Court considered a somewhat similar circumstance of claims that were confirmed in patent reexamination without amendment in Krippelz v. Ford Motor Company (here). Read the rest of this entry »

When is a Claim Finally Dead in Patent Reexamination?

Posted On: Sep. 1, 2011   By: Scott A. McKeown
reexamination claim cancellationClaim Changes in Patent Reexamination & Reexamination Certificates

When faced with the assertion of a patent of dubious validity, prospective defendants increasingly resort to patent reexamination as a cost effective mechanism to dissolve the dispute.

In many patent disputes, patent reexamination is conducted in parallel to a district court or ITC proceeding. Of course, as the reexamination proceeding advances, the reexamination prosecution history creates new defensive opportunities such as, additional prosecution history disclaimer and/or estoppel arguments; enhanced, or additional  inequitable conduct positions; and new non-infringement arguments.

Claim changes and/or cancellation are a boon to defendants as potentially mooting current infringement contentions or at least creating an intervening rights defense.  Yet, it is important to keep in mind that such claim changes are not effective until the proceeding is concluded. Read the rest of this entry »

Can a Favorable Patent Reexamination Record Undo a Markman Order?

Posted On: Aug. 18, 2011   By: Scott A. McKeown
markman-reexaminationParallel Patent Reexamination Qualifies as Newly Discovered Evidence Under Fed. R. Civ. P. 60(b)

It is well established that the USPTO utilizes different standards of evidence and claim interpretation in patent reexamination. Likewise, there is no presumption of validity in patent reexamination. For this reason, district court/ITC claim construction findings (i.e., Markman Orders) are not binding on the USPTO. In re Trans Texas Holdings Corp., 498 F.3d 1290 (Fed. Cir. 2007). Yet, the findings of the USPTO with regard to claim construction can have significant impact on the court rulings.

For example, this past January, in St. Clair Intellectual Property Consultants, Inc. v. Canon Inc., (Fed. Cir. 2011, non-precedential), the CAFC reversed a lower court claim construction ruling, based in part, on the findings of USPTO examiners in patent reexamination, Read the rest of this entry »

CAFC Sends NTP Patent Reexaminations Back to USPTO

Posted On: Aug. 1, 2011   By: Scott A. McKeown
ntp-reexaminationBPAI Definition of Email Found Unreasonable by CAFC

Last February NTP appealed the invalidity findings of the USPTO to the Court of Appeals for the Federal Circuit (CAFC). At that time I predicted that the case would shift back to the USPTO on a disputed claim construction issue. Today, the CAFC, while affirming much of the UPSTO’s fact finding, did indeed remand the case for further consideration of a new definition of “electronic mail” or “electronic mail message.”

The eight related appeals included thousands of claims of the NTP portfolio, of note, the USPTO rejected all but one of the previously adjudicated (RIM Litiigation) NTP claims in patent reexamination. Specifically, all of the claims of NTP Inc’s U.S. Patents 6,317,592, 5,819,172, and 6,067,451 were rejected and affirmed (BPAI). Rejections were affirmed-in-part in 5,436,960 and 5,625,670, (the surviving ‘670 claims were added in reexamination, claim 15 of the ‘960 appears to be the only surviving claim successfully asserted against RIM).

Today, the CAFC affirmed the rejection of all 764 claims of the ’592 patent. (NTP I, here).

A second decision (NTP II, here), which pertains to the remaining patents noted above as well as a few others, Vacated-in-part, Reversed-in-part, and Remanded previous determinations of the BPAI.

What does all of this mean for NTP? Read the rest of this entry »