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Key contacts
Managing Partner: Denise De Mory
Quick facts
Partners

13

Other qualified practitioners

8

Total number of practitioners

21

Languages

English, Spanish, Mandarin, Taiwanes

Key practice areas
Intellectual property
Dispute resolution
Dispute Resolution
Firm overview

Bunsow De Mory is a leading IP litigation and trial boutique firm based in Silicon Valley with an additional office in northern Virginia. The firm’s recent victories  have firmly cemented its position as one of the country’s elite patent trial firms.

Bunsow De Mory succeeds because of its singular focus: unwavering commitment to achieving its client’s goals, even against the odds. Firm lawyers don’t shy away from the most difficult challenges against the biggest technology companies in the world. They thrive on them.

The firm focuses on plaintiff-side patent cases, where clearing the hurdles to get to trial is rare, and winning at trial is even rarer. Yet, Bunsow De Mory continues to defy the odds, securing more than $250 million in verdicts and settlements in the last two years alone. 

Bunsow De Mory PTAB’s practice is second to none. Based on empirical studies of PTAB results, Patexia recently ranked Bunsow De Mory as the best performing law firm at the PTAB from July 2020 to June 2025.

The firm works on matters across a range of technologies and industries, including mobile automotive, telecommunications, artificial intelligence, fintech, and life sciences.

Legal experts have recognized the firm’s excellence. In addition to its recognition by Benchmark Litigation, the was also ranked as Highly Recommended for patent disputes by Managing IP and was listed in the Chambers USA guide for intellectual property—patent litigation.

Updated Dec 2025

Key practice areas
  • Intellectual property
Sector expertise
  • Technology and telecommunications
Key practice contacts & recent matter highlights

Denise De Mory
Intellectual property
ddemory@bdiplaw.com

Power Control, S.L. v.  Apple, Samsung, LG (D. Del.):

In June 2025, Bunsow De Mory secured the second largest patent damages verdict in the District of Delaware this year. After a three-day trial, a jury returned a $110,738,008 verdict for Bunsow De Mory client TOT Power Control against Apple. TOT Power Control alleged that Apple infringed two patents which claimed important technological improvements to 3G technology that enable significant power savings, greatly increasing a mobile phone’s available bandwidth for data. The jury found that Apple infringed one patent, found the patent valid, and awarded a $0.25 running royalty. 

Inmar Brand Solutions, Inc. v. Quotient Technology Inc. (D. Del., PTAB):

Bunsow De Mory represented Inmar, an innovative company that specializes in electronic coupon distribution and clearing. The firm guided Inmar to convert an infringement notice letter it received from a competitor into a major strategic patent win against a different competitor. Inmar obtained an exclusive license to the competitor’s patents and asserted them against Quotient Technologies. The firm secured a non-institution decision on one of Quotient’s inter partes review petitions filed with the Patent Trial & Appeal Board, a denial of Quotient’s attempt to stay the case pending the instituted IPRs, and a sweeping claim construction victory. The case settled favorably for Inmar in July 2025 in a confidential settlement.

Lambeth Magnetic Structures LLC v. Seagate Technologies (US) Holdings Inc. (W.D. Pa., Fed. Cir.):

Bunsow De Mory represents Lambeth Magnetic Structures in a long-running patent infringement case against Seagate. The firm secured a big win for LMS when the Federal Circuit reversed the trial court’s claim construction and issued a vacatur on the jury’s verdict against LMS on infringement. LMS’s case against Seagate dates to 2016 when Seagate for infringing a patent that claims a new enabling magnetic structure with a property called uniaxial anisotropy. Disk drive manufacturers use this invention to produce and sell next-generation hard drives with greatly enhanced storage capability. Bunsow De Mory will re-try LMS’s infringement case against Seagate.

Other offices

Alexandria
277 South Washington Street
Suite 210, #1088
22314, United States

Tel:650-351-7248 Email:Contact Us Web Address:https://bdiplaw.com/
Rankings published in 2025
Intellectual property
Tier 2
43 firms ranked
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Tier 1

Arnold & Porter
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15 practice areas
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Desmarais
7 practice areas
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Finnegan Henderson Farabow Garrett & Dunner
14 practice areas
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Fish & Richardson
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Gibson Dunn & Crutcher
18 practice areas
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Groombridge Wu Baughman & Stone
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Irell & Manella
9 practice areas
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Knobbe Martens
12 practice areas
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Latham & Watkins
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McKool Smith
10 practice areas
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Milbank
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Morrison Foerster
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Paul Weiss Rifkind Wharton & Garrison
17 practice areas
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Quinn Emanuel Urquhart & Sullivan
21 practice areas
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Reichman Jorgensen Lehman & Feldberg
8 practice areas
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Sidley Austin
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Williams & Connolly
14 practice areas
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WilmerHale
18 practice areas
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Tier 2

Axinn
2 practice areas
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Bunsow De Mory
3 practice areas
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Choate Hall & Stewart
10 practice areas
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Cooley
16 practice areas
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Covington & Burling
17 practice areas
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Cravath Swaine Moore
7 practice areas
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Davis Polk & Wardwell
8 practice areas
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Fenwick & West
13 practice areas
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Goodwin Procter
12 practice areas
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Greenberg Traurig
3 practice areas
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Keker Van Nest & Peters
10 practice areas
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Kilpatrick Townsend & Stockton
11 practice areas
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Kirkland & Ellis
22 practice areas
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Kobre & Kim
4 practice areas
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Orrick Herrington & Sutcliffe
15 practice areas
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Paul Hastings
8 practice areas
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Proskauer
19 practice areas
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Robins Kaplan
9 practice areas
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Rothwell Figg Ernst & Manbeck
10 practice areas
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Sheppard Mullin Richter & Hampton
5 practice areas
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Simpson Thacher & Bartlett
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Venable
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Weil Gotshal & Manges
20 practice areas
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White & Case
9 practice areas
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