US Patent US10555556B2 declared invalid in infringement case

Sep.21.2022
US Patent US10555556B2 declared invalid in infringement case
Philip Morris lost patent infringement case in the US and its patent was invalidated, impacting e-cigarette product development.

Recently, in Case No.1:20-cv-0039-LO-TCB, Phimosis International accused R.J. Reynolds of patent infringement with No.US10555556B2, but the patent has since been invalidated in the U.S. after a lengthy legal battle that ended in Phimosis International's defeat. What does this ruling mean for the development of domestic electronic cigarette products?


Author bio: Lawyer Tang Shunliang is a specialized attorney in the field of new tobacco at the Beijing Zhong Lun Wen De Kunming law firm.


Part 1: Case Review


In case number 1:20-cv-0039-LO-TCB, R.J. Reynolds has brought a lawsuit against Phimow International for copyright infringement. Phimow International has responded by countersuing R.J. Reynolds for a series of patent infringement cases, highlighting the intense nature of the patent litigation between these two parties.


The case identifier is 1:20-cv-0039-LO-TCB.


On June 15, 2022, the Eastern District Court of Virginia ruled that R.J. Reynolds had infringed on two electronic cigarette technology patents owned by Philip Morris, identified as No. US9814265 and No. US10104911. As a result, they were ordered to pay $10.76 million in damages.


In this case, Phemo International has presented several weapons in its charge of infringement, including the patent No. US10555556B2, and has provided extensive evidence and reasoning to accuse VUSE VIBE of continuous infringement since June 29, 2022, specifically violating the first right claim of the patent. If this charge is proven, the compensation amount will not be limited to 10.76 million.


The R.J. Reynolds company has responded by stating that the patent should not have been granted. This is why there is now news of the recent invalidation of the patent.


Phimo International files a counter lawsuit against R.J. Reynolds for patent infringement of No.US10555556B2.


In its lawsuit, Philip Morris International compared its product VUSE VIBE to the patent No.US10555556B2 and argued that VUSE VIBE falls within the protection scope of "claim 1". However, the lawsuit fails to provide a comparison of whether VUSE VIBE contains the "first and second capillary" related technical features. Even if the patent is not found to be "invalid", it may still not constitute infringement (interested readers can download and read the legal documents).


Previously, Philip Morris International launched a patent lawsuit against British American Tobacco in Germany using patent "EP2282649," which is similar to a capillary oil guide. The court ruled in favor of British American Tobacco, stating that there was no infringement, resulting in Philip Morris International losing the case.


What is the technology solution protected by Claim 1 of patent No.US10555556B2?


A cylinder (commonly known as an e-cigarette) used in an aerosol generation system comprises a liquid storage portion that includes a pod container to maintain the liquid aerosol formation matrix. The pod container has an opening and at least two fluidly connected components (oil guiding components) form the liquid storage portion. All e-liquids need a corresponding storage component.


The first component of the liquid storage section includes:


The first capillary material, including various oil-conducting materials, fiber such as cotton, porous materials like ceramics, is used to evenly distribute the heat generating element for the e-cigarette. It is located near the opening of the shell. The second capillary material comes into contact with the first material and is separated from the opening by the first material (and does not come into contact with the heating sheet). Additionally, the second component of the liquid storage portion includes:


This refers to a device that utilizes an aerosol-forming matrix (e-liquid) to maintain a liquid state and supply the resulting aerosol-forming matrix to a container (e-liquid reservoir) made of a second capillary material. The device includes a fluid-permeable heating element (e-liquid permeator) that extends over the opening of the shell and the average pore size or porosity of the first capillary material is smaller than that of the second capillary material.


The key issue addressed by this patent is:


By setting up two guiding capillaries, the e-liquid is evenly distributed and atomized in the heater, ensuring no waste or reductions in e-liquid due to a decrease in volume or change in angle. This guarantees a high-quality vaping experience with every puff.


2.2 Common oil leakage issues have been resolved. However, the corresponding Mesh products still suffer from oil leakage problems.


The key technology of this plan is:


The use of two different types of oil-conducting materials achieves an even distribution of e-liquid to the heating element according to the frequency of vaping, resulting in improved vaporization efficiency. Claim 1 is not limited to a specific structural form and various forms and materials of oil-conducting materials and heaters are given as examples, making the scope of the invention broad. The technical solution provided in the manual is worth studying and learning from, and perhaps even finding better improvements. To aid readers in analysis, the figures have been marked by the author.


Figure 1 shows the overall technical plan, taking reference from Mesh and IQOS VEEV e-cigarettes. The core principle of oil storage, oil delivery and atomization is presented in Figure 2. Figure 3 illustrates the axial flow of oil passing through the heater and being uniformly released as smoke through the porous ceramic. Figure 4 demonstrates the radial oil delivery system (similar to traditional cotton core + metal wire) for atomization.


Closing Remarks


The ongoing patent wars between two tobacco giants indicate that both HNB and electronic vaporizer companies may continue to face legal challenges. It is possible that tobacco corporations have not yet turned their attention to Chinese electronic cigarette manufacturers, possibly due to other priorities.


However, their weapons arsenal is indeed very extensive, their research and development speed is very fast, and they are constantly laying out new patents.


Attachment 1: Global Distribution of Patents in the Same Cluster


Attachment 2: Patent Texts from Various Countries


Attachment 3: US Patent and Trademark Office invalidity decision.


Statement:


1. This article is intended for internal research and communication within the industry. It does not provide any investment or brand recommendations. This article should not be used as the basis for any investments. 2. The data and analysis conclusions mentioned in this article have not been confirmed in writing with the companies involved. Therefore, all information should be verified with official company releases.


This article is an original creation of 2FIRSTS Technology Co. Ltd. in Shenzhen. The copyright and usage rights belong to the company and no individual or organization is allowed to use, reproduce or copy the content for commercial purposes without authorization. Any infringement of the company's copyright will be subject to legal action.



Disclaimer

This article is provided solely for professional research, industry discussion, and informational purposes. Any references to brands, companies, products, technologies, or policies are made for factual reporting and analytical purposes only, and do not constitute endorsement, recommendation, promotion, or advertising by 2Firsts.

Nicotine-containing products, including but not limited to cigarettes, e-cigarettes, heated tobacco products, and nicotine pouches, carry significant health risks. Readers are responsible for complying with all applicable laws and regulations in their respective jurisdictions, including age restrictions and access limitations.

The information contained in this article should not be regarded as investment, legal, medical, regulatory, or commercial advice. While 2Firsts strives to ensure the accuracy and reliability of its content, it does not assume liability for any direct or indirect loss arising from errors, omissions, inaccuracies, or reliance on the information contained herein.

This article is not intended for individuals below the legal age for accessing tobacco or nicotine-related information in their jurisdiction.

 

Copyright Notice

This article is either original content produced by 2Firsts or content reproduced, translated, summarized, or adapted from third-party sources with attribution where applicable. The intellectual property rights of the original content remain with 2Firsts or the respective original rights holders.

No individual or organization may copy, reproduce, distribute, republish, modify, translate, or otherwise use this content without prior authorization. Any unauthorized use may result in legal action.

For copyright-related inquiries, corrections, or removal requests, please contact: info@2firsts.com.

 

AI-Assisted Translation and Editing Notice

Portions of this article may have been translated, edited, or reviewed with the assistance of artificial intelligence tools to improve efficiency and readability. Due to the limitations of AI-assisted translation and editing, discrepancies, omissions, or inaccuracies may exist when compared with the original source.

Where applicable, readers are advised to refer to the original source for the most complete and accurate information. If you identify any errors or believe that any content infringes upon your rights, please contact us at info@2firsts.com, and we will review and address the matter promptly.

Arizona Turns to a 50% Retail Vape Tax as Tobacco Tax Revenue Falls 47% From 2008
Arizona Turns to a 50% Retail Vape Tax as Tobacco Tax Revenue Falls 47% From 2008
Arizona's First Things First is pushing for an excise tax equal to 50% of the retail price of vaping products, estimating that the measure could generate about $100 million annually. The agency says its tobacco-tax revenue has fallen 47% from 2008 levels. Arizona has attempted to broaden its nicotine tax base in each of the past two years: a 2025 bill proposed a 50% wholesale-price tax, while a 2026 measure shifted to a 50% retail-price tax covering alternative nicotine products and vapor products. Separately, the state enacted HB 4001 this year to establish a new licensing and sales framework for alternative nicotine products.
Sep.21
Product | JT Refreshes Ploom CUBE Design and Expands Japan Retail Distribution, Targeting Younger Men and Female Users
Product | JT Refreshes Ploom CUBE Design and Expands Japan Retail Distribution, Targeting Younger Men and Female Users
Japan Tobacco (JT) launched a refreshed Ploom CUBE design in Japan on September 8, 2026, with broader convenience-store and tobacco-retail distribution planned from October 13. The updated device retains the existing Rounded Cube form and heating platform while replacing four previous body colors with Pebble White and Cobalt Black. JT is also introducing new Front Panels and Fabric Back Covers, although the new accessories are not compatible with the previous Ploom CUBE design. The company says the update is intended to broaden appeal among younger male and female users.
Sep.09
F1 Faces Renewed Pressure Over Tobacco and Nicotine Sponsorships as 67 Groups Target ZYN and VELO Ahead of Madrid Race
F1 Faces Renewed Pressure Over Tobacco and Nicotine Sponsorships as 67 Groups Target ZYN and VELO Ahead of Madrid Race
Ahead of the Formula 1 race in Madrid, 67 Spanish and international public-health, medical and consumer organizations have sent an open letter to F1 President and CEO Stefano Domenicali calling for an end to sponsorships linked to the tobacco and nicotine industry, including nicotine pouches, vaping products and heated tobacco. The letter focuses on Philip Morris International’s ZYN partnership with Ferrari and British American Tobacco’s long-running partnership with McLaren and exposure for VELO. The campaign follows a March letter in which more than 160 organizations worldwide made a similar request to Formula 1.
Sep.10
Former Roche Neuroscience and Rare Diseases Communications Director Ria Kioupritzi Joins PMI as Scientific Affairs Director
Former Roche Neuroscience and Rare Diseases Communications Director Ria Kioupritzi Joins PMI as Scientific Affairs Director
Eleftheria (Ria) Kioupritzi, a biopharmaceutical professional with more than 15 years of experience, has joined Philip Morris International as Director Scientific Affairs within Corporate Affairs. She previously served at Roche as Senior Scientific Communications Director for Neuroscience and Rare Diseases and worked extensively in spinal muscular atrophy. Her earlier career also covered competitive intelligence, clinical and regulatory monitoring, pipeline development and launch preparation. During her time working in Roche's SMA field, Evrysdi passed through several U.S. FDA milestones, including its initial approval, an expanded indication for younger infants and approval of a tablet formulation. Public records do not show that Kioupritzi herself led the FDA submissions.
Sep.22
China’s Vape-Related Exports Rose 4.5% in Q3 2026 as 21.6% Growth in Shipments to the UK Offset a Decline in Shipments to the US
China’s Vape-Related Exports Rose 4.5% in Q3 2026 as 21.6% Growth in Shipments to the UK Offset a Decline in Shipments to the US
China's vape-related exports rose 4.5% year over year to $2.86 billion in the third quarter of 2026, led by stronger shipments to the United Kingdom as exports to the United States declined. UK-bound shipments increased 21.6%, adding $81.9 million, while US exports fell 5.2%, or $53.6 million. Growth weakened through the quarter, with September exports down 6.3% globally and 37.8% to the US. Nicotine-containing vape products accounted for more than 82% of the quarterly net increase, while device exports were nearly flat. Nine-month exports totaled $7.82 billion, up 4.0%.
DATA
Oct.26
Philippines Mandates Safety Certification for Nicotine Pouches, Gives Industry 12 Months to Comply
Philippines Mandates Safety Certification for Nicotine Pouches, Gives Industry 12 Months to Comply
The Philippines Department of Trade and Industry has placed nicotine pouches under mandatory product certification through Department Administrative Order No. 26-07, Series of 2026. Nicotine pouches must obtain a Philippine Standard, or PS, license before they can be manufactured, imported, packed, distributed or sold in the country. The regime requires testing for nicotine content, pH and water activity, while packaging must disclose nicotine strength, ingredients, allergens, batch information, the PS certification mark and prescribed health warnings. Existing market participants have a 12-month transition period to comply.
Regulations
Oct.12