United States: CLAIM CONSTRUCTION "GAMESMANSHIP"? Quantum Corporation's Expert Ordered To Sit For Further Deposition On Claim Construction

Last Updated: October 13 2015
Article by George L. Kanabe

Order Re Crossroads' Motion To Strike, Quantum Corporation v. Crossroads Systems Inc., Case No. C 14-04293 WHA (Judge William Alsup)

Expert witnesses are often used during patent claim construction to offer extrinsic evidence relevant to the meaning of claim terms, such as how one skilled in the art would have understood the terms at the time of the invention. Yet, experts must be careful to avoid offering opinions on the ultimate meaning of claim terms, which is a question of law. This is a subtle balance that can be tricky to carry out in practice. As Judge Alsup's recent opinion makes clear, an expert must be careful not to cross the line into "gamesmanship" territory when parsing "fact" opinions versus ultimate opinions on claim constructions.

Quantum sued Crossroads Systems, Inc., alleging infringement of a patent related to data storage. Quantum identified Dr. Andrew Hospodor as its claim construction expert who would opine on the meaning of certain claims, a notion he resisted during deposition. Instead, Dr. Hospodor claimed that he was only testifying about matters of fact, i.e., what was known to one skilled in the art at the time of the invention:

Q. So your . . . understanding is here is that you're only here to testify with respect to prior art?
A. My understanding is that I'm here with respect to what was known of one skilled in the art in 2001 and provide facts along . . . those lines.
. . .
Q. But as I understood your prior testimony, you are not going to give an opinion as to the meaning of claim terms; correct?
A. Not in this deposition.
. . .
Q. [Y]ou understand if you don't provide us with the opinions here, you won't be allowed to provide . . . an opinion at the claim construction hearing? Do you understand that?
A. Yeah, I don't . . . know if I'm going to be opining or — either way.
Q. But . . . you don't have opinions today for purposes of this deposition with respect to the meaning of the claim terms in the '412 patent?
A. I'm not going to be providing definitions for the claim terms in the '412 patent. I don't have opinions on the meanings of those claim terms today.

Despite disavowing any ultimate opinion on claim construction during deposition, Dr. Hospodor later submitted a 38-page declaration including "Claim Construction Analysis" and specific definitions for terms, as purportedly understood by persons of ordinary skill, in support of Quantum's opening claim construction brief.

Crossroads moved to strike Dr. Hospodor's declaration and preclude him from testifying on claim construction in rebuttal to Crossroads' own expert, Dr. John Levy. Judge Alsup agreed that Crossroads had put Dr. Hospodor on notice by providing a "summary" of Dr. Levy's opinions, and that Dr. Hospodor should have been prepared to answer questions about such opinions at deposition.

Crossroads also argued that Dr. Hospodor's declaration offered opinions of the nature he declined to provide during deposition. To make matters worse, Dr. Hospodor—in Judge Alsup's words—"vagued out" even when asked to describe the level of ordinary skill in the art, to which he replied: "I haven't created that opinion yet." Quantum's counsel tried to rehabilitate this testimony on redirect, at which point Dr. Hospodor volunteered that one skilled in the art has a bachelor's degree in computer science and at least two years of experience working with tape libraries. Judge Alsup did not take kindly to this inconsistent testimony, remarking that the redirect testimony came "evidently after some woodshedding" by counsel during a break.

Despite Dr. Hospodor's inconsistent testimony and apparent lack of preparedness at deposition to address the opposing expert's opinions, Judge Alsup noted his disappointment that Crossroad's counsel elected to "rest on [Dr. Hospodor's] generic refusal to engage in claim construction" rather than asking "a few pointed questions" to properly subject his opinions to cross-examination. Without the proverbial nail in the coffin, Judge Alsup found the record insufficient to warrant striking Dr. Hospodor's declaration, but ordered that he sit for another three hours of deposition. More significantly, he also left open the door to "the distinct possibilities that the jury will be allowed to learn of Dr. Hospodor's gamesmanships and that the judge will also take it into account on claim construction."

Judge Alsup's order is a cautionary tale of potential pitfalls when navigating the mixed factual and legal terrain of claim construction, and highlights the importance of maintaining consistency with one's expert. While it may not provide a roadmap for the bounds on expert testimony, the order serves as a reminder that developing a full deposition record will generally benefit a party regardless of its side in a subsequent expert challenge.

The content of this article is intended to provide a general guide to the subject matter. Specialist advice should be sought about your specific circumstances.

To print this article, all you need is to be registered on Mondaq.com.

Click to Login as an existing user or Register so you can print this article.

Authors
 
In association with
Related Video
Up-coming Events Search
Tools
Print
Font Size:
Translation
Channels
Mondaq on Twitter
 
Register for Access and our Free Biweekly Alert for
This service is completely free. Access 250,000 archived articles from 100+ countries and get a personalised email twice a week covering developments (and yes, our lawyers like to think you’ve read our Disclaimer).
 
Email Address
Company Name
Password
Confirm Password
Position
Mondaq Topics -- Select your Interests
 Accounting
 Anti-trust
 Commercial
 Compliance
 Consumer
 Criminal
 Employment
 Energy
 Environment
 Family
 Finance
 Government
 Healthcare
 Immigration
 Insolvency
 Insurance
 International
 IP
 Law Performance
 Law Practice
 Litigation
 Media & IT
 Privacy
 Real Estate
 Strategy
 Tax
 Technology
 Transport
 Wealth Mgt
Regions
Africa
Asia
Asia Pacific
Australasia
Canada
Caribbean
Europe
European Union
Latin America
Middle East
U.K.
United States
Worldwide Updates
Check to state you have read and
agree to our Terms and Conditions

Terms & Conditions and Privacy Statement

Mondaq.com (the Website) is owned and managed by Mondaq Ltd and as a user you are granted a non-exclusive, revocable license to access the Website under its terms and conditions of use. Your use of the Website constitutes your agreement to the following terms and conditions of use. Mondaq Ltd may terminate your use of the Website if you are in breach of these terms and conditions or if Mondaq Ltd decides to terminate your license of use for whatever reason.

Use of www.mondaq.com

You may use the Website but are required to register as a user if you wish to read the full text of the content and articles available (the Content). You may not modify, publish, transmit, transfer or sell, reproduce, create derivative works from, distribute, perform, link, display, or in any way exploit any of the Content, in whole or in part, except as expressly permitted in these terms & conditions or with the prior written consent of Mondaq Ltd. You may not use electronic or other means to extract details or information about Mondaq.com’s content, users or contributors in order to offer them any services or products which compete directly or indirectly with Mondaq Ltd’s services and products.

Disclaimer

Mondaq Ltd and/or its respective suppliers make no representations about the suitability of the information contained in the documents and related graphics published on this server for any purpose. All such documents and related graphics are provided "as is" without warranty of any kind. Mondaq Ltd and/or its respective suppliers hereby disclaim all warranties and conditions with regard to this information, including all implied warranties and conditions of merchantability, fitness for a particular purpose, title and non-infringement. In no event shall Mondaq Ltd and/or its respective suppliers be liable for any special, indirect or consequential damages or any damages whatsoever resulting from loss of use, data or profits, whether in an action of contract, negligence or other tortious action, arising out of or in connection with the use or performance of information available from this server.

The documents and related graphics published on this server could include technical inaccuracies or typographical errors. Changes are periodically added to the information herein. Mondaq Ltd and/or its respective suppliers may make improvements and/or changes in the product(s) and/or the program(s) described herein at any time.

Registration

Mondaq Ltd requires you to register and provide information that personally identifies you, including what sort of information you are interested in, for three primary purposes:

  • To allow you to personalize the Mondaq websites you are visiting.
  • To enable features such as password reminder, newsletter alerts, email a colleague, and linking from Mondaq (and its affiliate sites) to your website.
  • To produce demographic feedback for our information providers who provide information free for your use.

Mondaq (and its affiliate sites) do not sell or provide your details to third parties other than information providers. The reason we provide our information providers with this information is so that they can measure the response their articles are receiving and provide you with information about their products and services.

If you do not want us to provide your name and email address you may opt out by clicking here .

If you do not wish to receive any future announcements of products and services offered by Mondaq by clicking here .

Information Collection and Use

We require site users to register with Mondaq (and its affiliate sites) to view the free information on the site. We also collect information from our users at several different points on the websites: this is so that we can customise the sites according to individual usage, provide 'session-aware' functionality, and ensure that content is acquired and developed appropriately. This gives us an overall picture of our user profiles, which in turn shows to our Editorial Contributors the type of person they are reaching by posting articles on Mondaq (and its affiliate sites) – meaning more free content for registered users.

We are only able to provide the material on the Mondaq (and its affiliate sites) site free to site visitors because we can pass on information about the pages that users are viewing and the personal information users provide to us (e.g. email addresses) to reputable contributing firms such as law firms who author those pages. We do not sell or rent information to anyone else other than the authors of those pages, who may change from time to time. Should you wish us not to disclose your details to any of these parties, please tick the box above or tick the box marked "Opt out of Registration Information Disclosure" on the Your Profile page. We and our author organisations may only contact you via email or other means if you allow us to do so. Users can opt out of contact when they register on the site, or send an email to unsubscribe@mondaq.com with “no disclosure” in the subject heading

Mondaq News Alerts

In order to receive Mondaq News Alerts, users have to complete a separate registration form. This is a personalised service where users choose regions and topics of interest and we send it only to those users who have requested it. Users can stop receiving these Alerts by going to the Mondaq News Alerts page and deselecting all interest areas. In the same way users can amend their personal preferences to add or remove subject areas.

Cookies

A cookie is a small text file written to a user’s hard drive that contains an identifying user number. The cookies do not contain any personal information about users. We use the cookie so users do not have to log in every time they use the service and the cookie will automatically expire if you do not visit the Mondaq website (or its affiliate sites) for 12 months. We also use the cookie to personalise a user's experience of the site (for example to show information specific to a user's region). As the Mondaq sites are fully personalised and cookies are essential to its core technology the site will function unpredictably with browsers that do not support cookies - or where cookies are disabled (in these circumstances we advise you to attempt to locate the information you require elsewhere on the web). However if you are concerned about the presence of a Mondaq cookie on your machine you can also choose to expire the cookie immediately (remove it) by selecting the 'Log Off' menu option as the last thing you do when you use the site.

Some of our business partners may use cookies on our site (for example, advertisers). However, we have no access to or control over these cookies and we are not aware of any at present that do so.

Log Files

We use IP addresses to analyse trends, administer the site, track movement, and gather broad demographic information for aggregate use. IP addresses are not linked to personally identifiable information.

Links

This web site contains links to other sites. Please be aware that Mondaq (or its affiliate sites) are not responsible for the privacy practices of such other sites. We encourage our users to be aware when they leave our site and to read the privacy statements of these third party sites. This privacy statement applies solely to information collected by this Web site.

Surveys & Contests

From time-to-time our site requests information from users via surveys or contests. Participation in these surveys or contests is completely voluntary and the user therefore has a choice whether or not to disclose any information requested. Information requested may include contact information (such as name and delivery address), and demographic information (such as postcode, age level). Contact information will be used to notify the winners and award prizes. Survey information will be used for purposes of monitoring or improving the functionality of the site.

Mail-A-Friend

If a user elects to use our referral service for informing a friend about our site, we ask them for the friend’s name and email address. Mondaq stores this information and may contact the friend to invite them to register with Mondaq, but they will not be contacted more than once. The friend may contact Mondaq to request the removal of this information from our database.

Security

This website takes every reasonable precaution to protect our users’ information. When users submit sensitive information via the website, your information is protected using firewalls and other security technology. If you have any questions about the security at our website, you can send an email to webmaster@mondaq.com.

Correcting/Updating Personal Information

If a user’s personally identifiable information changes (such as postcode), or if a user no longer desires our service, we will endeavour to provide a way to correct, update or remove that user’s personal data provided to us. This can usually be done at the “Your Profile” page or by sending an email to EditorialAdvisor@mondaq.com.

Notification of Changes

If we decide to change our Terms & Conditions or Privacy Policy, we will post those changes on our site so our users are always aware of what information we collect, how we use it, and under what circumstances, if any, we disclose it. If at any point we decide to use personally identifiable information in a manner different from that stated at the time it was collected, we will notify users by way of an email. Users will have a choice as to whether or not we use their information in this different manner. We will use information in accordance with the privacy policy under which the information was collected.

How to contact Mondaq

You can contact us with comments or queries at enquiries@mondaq.com.

If for some reason you believe Mondaq Ltd. has not adhered to these principles, please notify us by e-mail at problems@mondaq.com and we will use commercially reasonable efforts to determine and correct the problem promptly.