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.

Couche-Tard Posts Double-Digit U.S. Same-Store Growth in Other Nicotine Products, Led by Pouches
Couche-Tard Posts Double-Digit U.S. Same-Store Growth in Other Nicotine Products, Led by Pouches
Alimentation Couche-Tard said U.S. same-store sales in its “other nicotine products” category grew at a double-digit rate in the first quarter of fiscal 2027, led by nicotine pouches, while overall U.S. same-store merchandise revenues increased 1.7%. The company also said its Canadian nicotine business continued to face regulatory pressure and illicit-market headwinds. The U.S. performance coincides with Couche-Tard's participation in efforts to reopen Canadian convenience-store access to authorized nicotine pouches, though the company has not established a direct causal link between the two.
Sep.14
Product | JTI Introduces Fully Dissolvable PERLZ Nicotine Pearls in UK, Expands Range From 30-Pearl Dispensers to 10-Pearl Sachets
Product | JTI Introduces Fully Dissolvable PERLZ Nicotine Pearls in UK, Expands Range From 30-Pearl Dispensers to 10-Pearl Sachets
Japan Tobacco International (JTI) has introduced PERLZ nicotine pearls in the UK, expanding its oral nicotine portfolio beyond conventional nicotine pouches. The fully dissolvable, multi-layer pearls are placed under the tongue and come in Mint and Berry flavors at concentrations of 1mg/g and 2mg/g, equivalent to approximately 0.3mg and 0.5mg of nicotine per pearl. UK retailer Haypp published four 30-pearl dispenser listings on July 31, 2026, followed by three 10-pearl sachet products on August 17. The dispensers retail for £6.50, while the sachets cost £2.50.
product
Oct.12
Smoore Seeks to Toss CCELL Price-Fixing Claim as Court Weighs Vertical Distribution Versus Horizontal Conspiracy
Smoore Seeks to Toss CCELL Price-Fixing Claim as Court Weighs Vertical Distribution Versus Horizontal Conspiracy
Smoore and four authorized U.S. CCELL distributors are asking a California federal court to permanently dismiss a core antitrust claim brought by direct purchasers. Plaintiffs allege that Smoore coordinated minimum wholesale prices, customer allocation and limits on price competition among distributors, amounting to a per se unlawful horizontal conspiracy. The defendants say the alleged conduct reflects ordinary vertical relationships between a manufacturer and its distributors. The court previously dismissed a similar claim, and the latest dispute centers on whether the second amended complaint adds sufficient facts to establish a horizontal agreement.
Sep.14
Product | PMI Launches ZYN Melts in UK, Extending ZYN Beyond Nicotine Pouches Into Dissolvable Tablets
Product | PMI Launches ZYN Melts in UK, Extending ZYN Beyond Nicotine Pouches Into Dissolvable Tablets
Philip Morris International (PMI) has launched ZYN Melts in the UK, introducing a fully dissolvable oral nicotine tablet format alongside the brand's existing nicotine pouches. The range includes Cool Mint and Peppermint, each offered at 1mg and 2mg of nicotine per tablet, creating four SKUs. Each can contains 20 tablets and is priced at £6.50 in the UK. Unlike ZYN nicotine pouches, Melts are placed between the upper lip and gum and dissolve completely during use.
News
Sep.29 by 2Firsts Perspectives
On-Site Report | After FDA Announces Review of PMTA Framework, CTP Director Details Reform Priorities
On-Site Report | After FDA Announces Review of PMTA Framework, CTP Director Details Reform Priorities
FDA CTP Director Bret Koplow used his FDLI keynote in Washington to outline how the agency is rethinking the PMTA framework. He discussed category-specific review, nicotine pouch and sPMTA pilots, AI-assisted review, a 70% reduction in pending applications, and a major staffing constraint: CTP currently has only nine scientific review teams. He also reaffirmed tobacco harm reduction while stressing youth protection, flavored products, risk communication, and the challenge of unauthorized e-cigarettes.
Regulations
Oct.06
How Large Is France’s Off-Channel Tobacco Market? Logista Says It Has Become Structural, While the Official Estimate Is 17.7% and Some Industry Studies Put It Above 50%
How Large Is France’s Off-Channel Tobacco Market? Logista Says It Has Become Structural, While the Official Estimate Is 17.7% and Some Industry Studies Put It Above 50%
Logista France says tobacco consumption outside France’s official tobacconist network has become a large and structural market phenomenon, but official and industry estimates differ sharply. France’s TAFE study estimates that 17.7% of tobacco consumption escaped domestic taxation in 2023, with most of that volume attributed to cross-border purchasing rather than street sales. Some industry studies use broader off-channel definitions and put the figure above 50%. Meanwhile, French Customs seized 547.94 tonnes of tobacco in 2025, up 12%, showing continued pressure from illicit trade.
Sep.04