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.

Product | BAT Expands VELO Peach Ice Medium to FamilyMart Stores Nationwide in Japan
Product | BAT Expands VELO Peach Ice Medium to FamilyMart Stores Nationwide in Japan
British American Tobacco Japan (BAT Japan) expanded VELO Peach Ice Medium to FamilyMart stores nationwide in Japan from September 7, 2026. The oral tobacco product first launched on July 6 and had previously been sold through VELO's official online store, glo Store Ginza and tobacco retailers. It combines peach flavor with menthol cooling at a Medium strength level and is priced at JPY 360. Japanese tobacco retailers list 15 pouches per pack. The move adds the new SKU to an existing nationwide FamilyMart distribution network for VELO rather than marking the brand's first entry into the convenience-store chain.
Sep.15
Juul Displays FDA-Authorized JUUL2, Highlights Age Verification at NACS Show 2026
Juul Displays FDA-Authorized JUUL2, Highlights Age Verification at NACS Show 2026
At the 2026 NACS Show in Las Vegas, Juul Labs displayed its JUUL2 e-cigarette system alongside existing products, age-verification messaging and mobile coupons, 2Firsts observed. The JUUL2 device and Virginia Tobacco and Polar Menthol pods received FDA marketing authorization in August 2026. Booth materials highlighted longer battery life, greater e-liquid capacity and connected-device features. A TruAge sign and a mobile coupon presentation also featured at the booth, with weekly offers available to age-verified adult nicotine consumers at participating retailers.
EXPO
Oct.09
2Firsts On-Site | CTIHK Showcases Nicotine Pouches, Heated Tobacco and Chinese Cigars at InterTabac 2026
2Firsts On-Site | CTIHK Showcases Nicotine Pouches, Heated Tobacco and Chinese Cigars at InterTabac 2026
At InterTabac 2026 in Dortmund, China Tobacco International (HK) Company Limited (CTIHK) is exhibiting across two separate booths in Hall 5 and Hall 4. Products observed by 2Firsts include heated tobacco products, nicotine pouches, Chinese cigars and tobacco leaf. Nicotine pouch products on display include TOOP, Shuangxi and Ashima.
Market
Sep.16
Product | BAT Launches VELO WRKS Nicotine Pouches in Sweden, Introducing Dual-Compartment Cans With Two Flavours
Product | BAT Launches VELO WRKS Nicotine Pouches in Sweden, Introducing Dual-Compartment Cans With Two Flavours
British American Tobacco (BAT)'s VELO brand launched the VELO WRKS nicotine pouch range in Sweden on November 2, 2026. The initial release features three Dual Can variants, each containing two separate flavours in a dual-compartment container. Each can holds 20 slim pouches with 8mg of nicotine per pouch and retails for SEK 52.99. According to VELO, the first release, Drop 1, is limited to 75,000 cans and will remain available until February 2027 or while stocks last. VELO positions WRKS as a platform for testing new product concepts and has introduced an online consumer feedback survey. EU trademark records show BAT applied to register VELO WRKS in March 2026 under Class 34, covering nicotine pouches, e-cigarettes, heated tobacco products and other tobacco-related goods.
product
Nov.03
JTI Liggett Puts U.S. Value Cigarette Brands in Spotlight at 2026 NACS Show
JTI Liggett Puts U.S. Value Cigarette Brands in Spotlight at 2026 NACS Show
At the 2026 NACS Show in Las Vegas, JTI Liggett highlighted its value-priced cigarette portfolio, including LD and Montego, following JT Group's acquisition of Vector Group. The company's U.S. business reported market share gains, with LD sales volume rising 32.6% in the first half of 2026. Meanwhile, Ploom was displayed separately at Altria's booth under an existing partnership. JTI Liggett booth staff told 2Firsts that the company had not yet launched nicotine pouch products in the United States.
EXPO
Oct.09
UK Vape Duty Starts in October as Hayati, DOJO and Others Launch Lower-Capacity Products With Lower Per-Unit Tax
UK Vape Duty Starts in October as Hayati, DOJO and Others Launch Lower-Capacity Products With Lower Per-Unit Tax
The UK's Vaping Products Duty will take effect on October 1, 2026, at a flat rate of £2.20 per 10ml of vaping liquid. Ahead of implementation, DOJO, PIXL and Hayati have introduced or been reported to be adding lower-capacity tiers alongside larger products. DOJO has added a 6ml BLAST7K Fresh below its 10ml BLAST10K Fresh, PIXL offers both a 12ml 8000 and a 6ml 5K, while retailer Ninja Vapes says Hayati is preparing a 7ml 4K alongside its existing 12ml 6K. The pattern points to a growing lower-capacity tier in the UK market, although the brands have not all explicitly linked the changes to the new duty.
Sep.23