Home Legal Advice Correcting Patents Throughout an IPR

Correcting Patents Throughout an IPR


by Dennis Crouch

Fitbit, Inc. v. Valencell, Inc. (Fed. Cir. 2020)

On this resolution, the Federal Circuit makes two necessary statements going ahead regarding inter partes assessment proceedings:

  • A joined celebration has full rights to enchantment a PTAB remaining resolution – whilst to claims or grounds not raised by the joined celebration.
  • Throughout an IPR, the PTAB should right errors in a patent when a certificates of correction could be applicable and when requested by the events.  (Whenever you learn the case, you’ll observe that the courtroom doesn’t fairly say this, however virtually.)

Valencell’s US8923941 covers strategies of producing information regarding blood oxygen stage, coronary heart fee, and different bodily exercise.  The claimed technique contains two main steps: (1) sensing; and (2) processing.  The sensing step requires a single gadget “hooked up” to a consumer that features a motin sensor (accelerometer) and a pulse-oximeter (photoplethysmography – PPG).  The processing step creates a sign that features coronary heart fee, respiration fee, and a plurality of bodily exercise parameters.

This setup is now frequent with many hundreds of thousands of such gadgets being offered throughout the nation.  Based on its courtroom filings, Valencell repeatedly approached varied main gamers–together with Fitbit and Apple–searching for partnership & licensing alternatives. The businesses refused and Valencell finally filed a set of infringement lawsuits again in 2016.  Apple & Fitbit then petitioned for inter partes assessment.

This case is partically an IPR process case and so the next timeline is considerably necessary:

  • Apple filed its IPR petition on claims 1-13. The Board partially granted the petition partially — solely as to claims 1, 2, and 6-13.
  • Fitbit then filed its IPR petition on claims 1, 2, and 6-13 and moved for joinder with Apple’s case. The Board granted that movement.
  • The Supreme Court docket then issued SAS — barring the apply of partial establishment.  As such, the Board issued a brand new establishment resolution including the entire challenged claims (3-5).
  • The Board then discovered the initially granted claims to be unpatentable, however discovered no downside with claims 3-5 (“not unpatentable.”)

Apple didn’t enchantment, however Fitbit has appealed — arguing that claims 3-5 are additionally invalid.

Joinder and Proper of Enchantment: The primary query within the case is whether or not Fitbit has a proper to enchantment concerning claims that it didn’t problem within the first place.  Right here, the Federal Circuit says sure they do get to enchantment — holding {that a} joined celebration’s rights apply “to the whole lot of the proceedings and contains the best of enchantment.” The courtroom right here was primarily guided by the right-of-appeal statute that states plainly “Any celebration to the inter partes assessment shall have the best to be a celebration to the enchantment.” 35 U.S.C. § 319.  And, the joinder provision signifies that the brand new entity is “be part of[ed] as a celebration.” 35 U.S.C. § 315(c).

On the deserves of obviousness: I mentioned the final scope of declare 1 above.  Claims 3-5 are all dependent and add just a few further limitations:

  • Declare 3 – the processed information is usable with an utility particular interface (abbreviated API)
  • Declare 4 – the “the applying” generates statistical relationships between the assorted parameters. [Note – there is no antecedent basis for “the application”]
  • Declare 5 – provides additional definition to the stats developed, together with “Bland-Altman plots.”

Do the Evaluation: As to say 3, the events had supplied competing constructions of the time period application-specific-interface.  The Board selected the patentee’s narrower building and dominated the declare not-proven-unpatentable. On enchantment, the Federal Circuit dominated that the Board ought to have accomplished its evaluation and walked via whether or not the declare was apparent underneath the slim building.

Lack of Antecedent Foundation: The restrictions of claims 4 & 5 lack antecedent foundation. Specifically, the claims seem so as to add limitations to “the applying” however that portion of the invention shouldn’t be beforehand claimed.   The Board didn’t get into its obviousness evaluation due to this technical challenge with the claims:

Though we agree that the recitation of the time period “the applying” in declare Four lacks antecedent foundation in declare 1, we declined to invest as to the meant which means of the time period.   Though Petitioner and Patent Proprietor now appear to agree on the character of the error in claims Four and 5 [citing briefs], we discover that the character of the error in claims Four and 5 is topic to affordable debate in view of the language of claims 1 and three–5 and/or that the prosecution historical past doesn’t exhibit a single interpretation of the claims.

Board Op.

It seems that in prosecution, the patent applicant cancelled a dependent declare mentioned the Software, and the stray reference was not caught by both the legal professional nor the examiner.

On enchantment, the Federal Circuit holds that the Board ought to have mounted the error right here.

The preferable company motion is to hunt to serve the company’s task underneath the America Invents Act, and to resolve the deserves of patentability. Though the Board doesn’t talk about its authority to right errors, there may be basis for such authority within the America Invents Act, which assured that the Board has authority to amend claims of issued patents. See 35 U.S.C. § 316(d). . . . The idea of error correction shouldn’t be new to the Company, which is permitted to challenge Certificates of Correction.

Specifically, all of the events agreed that the error was inadvertent and may very well be corrected by the Board.

Though the Board states that the meant which means of the claims is “topic to affordable debate,” we understand no debate. Quite, the events to this continuing agree as to the error and its correction. The Board erred in declining to just accept the events’ uniform place and proper the error that declare Four rely from declare 3. With this correction, the rejection of claims Four and 5 for absence of antecedent foundation for “the applying” disappears.

Slip Op. On remand, the Board will right the error and truly choose the obviousness of those three remaining claims.


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