IP Law Daily, PATENT—E.D. Cal.: E. & J. Gallo Winery secures dismissal of vineyard technology developer's infringement lawsuit, (Jul 7, 2026)

By Ravindra Kumar Singh, B.L.

Asserted patents covered abstract ideas implemented with conventional technology, and the accused experimental irrigation systems also failed to satisfy multiple claim limitations.

A federal district court in California has granted summary judgment to E. & J. Gallo Winery in a long-running patent infringement lawsuit involving vineyard irrigation technology, holding that the accused experimental irrigation systems did not infringe the asserted patent claims, that two asserted patents claimed patent-ineligible subject matter under 35 U.S.C. §101, and that the asserted claims of a third patent were invalid for indefiniteness. The court concluded that the asserted claims merely recited the abstract idea of controlling irrigation and material application using sensor and external data through generic computing components and therefore lacked the inventive concept required under the Alice/Mayo framework (Vineyard Investigations v. E. & J. Gallo Winery, No. 1:19-cv-01482-JLT-EGC (E.D. Cal. Jul. 2, 2026)).

Background. The plaintiff, Vineyard Investigations, is a California-based wine industry consulting company owned by viticulture researcher Dr. Paul Skinner, who is also the inventor of the asserted patents. The defendant, E. & J. Gallo Winery, is one of the United States' largest wine producers and distributors.

The lawsuit involved U.S. Patent Nos. 8,528,834 (the ’834 patent), 6,947,810 (the ’810 patent), and 10,645,881 (the ’881 patent), which generally relate to automated crop-growing systems that combine data from plant-mounted sensors and external sources, such as weather and evapotranspiration data, to control irrigation and the application of agricultural materials. The patents broadly describe using conventional sensors and control systems to perform those functions.

The action was filed in 2019. During the ensuing six years, the court denied an early Section 101 motion to dismiss challenging patent eligibility, rejected a motion alleging inequitable conduct, conducted claim construction proceedings, resolved numerous discovery disputes, and clarified its claim construction before the defendant moved for summary judgment on noninfringement and indefiniteness. After reviewing the parties' briefing, the court directed additional briefing concerning infringement issues and authorized the defendant to file a supplemental summary judgment motion challenging patent eligibility under Section 101.

Patent eligibility. Vineyard Investigations argued that the court's earlier denial of Gallo's motion to dismiss under 35 U.S.C. § 101 precluded reconsideration of patent eligibility under the law-of-the-case doctrine. The court disagreed, explaining that interlocutory rulings generally remain subject to reconsideration before final judgment. Citing Askins v. U.S. Department of Homeland Security, 899 F.3d 1035 (9th Cir. 2018), the court noted that district courts may revisit earlier interlocutory decisions while retaining jurisdiction over the case. It concluded that denial of the earlier motion merely reflected the insufficiency of the pleadings at that stage and did not foreclose reconsideration of patent eligibility on the more fully developed summary judgment record.

Claims directed to an abstract idea.Applying the Alice/Mayo framework, the court first examined the asserted claims' focus. It concluded that the claimed advance amounted to the longstanding practice of collecting information from sensors and external sources, processing it, and using it to determine how much water or other material should be applied to particular plants. Although the patents described numerous types of sensors and sources of environmental information, the claims themselves did not recite any technological improvement to those components or to computer technology. Instead, they merely invoked conventional sensors, generic controllers, and ordinary data processing to implement the abstract concept of making irrigation decisions based on available information.

The court further observed that the specifications repeatedly acknowledged that any type of control system could be used, that processing could be performed in any known manner, and that publicly available agricultural research could supply the rules governing irrigation decisions. Those disclosures reinforced the conclusion that the patents relied upon conventional technology rather than any specific technological innovation.

No inventive concept. Proceeding to Alice step two, the court rejected the plaintiff's argument that the asserted claims contained an inventive concept because they associated individual sensors with individual plants and permitted selective irrigation based upon sensor readings.

According to the court, those features merely implemented the underlying abstract idea itself. Associating sensors with plants and adjusting irrigation accordingly were necessary aspects of the claimed concept, rather than technological improvements that transform an abstract idea into patent-eligible subject matter. Because the remaining claim elements consisted of conventional sensors, controllers, emitters, and routine data processing techniques already well understood in the field, the claims lacked the "significantly more" required for patent eligibility under Section 101. The court therefore held claims 1, 6, 7, 10, and 15 of the '834 patent and claims 2, 4, 20, 22, and 36 of the '810 patent invalid under Section 101.

Non-infringement. The court separately concluded that the defendant's experimental vineyard irrigation systems did not infringe the asserted claims. Although the issue became largely academic after the court found the patents patent-ineligible, the court addressed it because the parties had devoted extensive briefing to claim construction and infringement.

Central to the dispute was the requirement that each sensor and emitter be "associated with" and in "fixed proximity to" a particular plant. Following claim construction, the court determined that the patents contemplated a system in which individual sensors and emitters correspond to individual plants and permit plant-specific dispensing decisions. The evidence showed that the defendant's experimental irrigation systems instead relied primarily on block-level irrigation zones and environmental data collected for groups of vines rather than dedicated sensors and emitters associated with individual plants. As a result, no reasonable jury could conclude that the accused systems practiced every limitation of the asserted claims.

The plaintiff argued that the defendant's systems effectively associated sensors with individual vines because sensor readings influenced irrigation decisions that affected specific vineyard areas. The court rejected that argument, explaining that patent infringement requires satisfaction of the claim limitations, not functional similarity. The patents required each plant to have associated sensors and emitters in fixed proximity, enabling plant-specific control, whereas the accused systems operated at a broader irrigation-zone level. Because at least one claim limitation was absent, summary judgment of non-infringement was appropriate.

In reaching that conclusion, the court reiterated the settled principle that infringement requires every claim limitation to be present in the accused product or process. It further observed that conclusory expert opinions cannot create a genuine issue of material fact at summary judgment, citing Genuine Enabling Technology LLC v. Sony Group Corp., 167 F.4th 1196 (Fed. Cir. 2026), and Traxcell Technologies, LLC v. Sprint Communications Co., 15 F.4th 1121 (Fed. Cir. 2021).

Indefiniteness of the ’881 patent. The court also granted summary judgment that the asserted claims of the ’881 patent were invalid for indefiniteness. The patent introduced claim language that the court found failed to provide objective boundaries for determining the scope of the claimed invention. Because persons of ordinary skill in the art could not determine the claim scope with reasonable certainty, the claims failed to satisfy 35 U.S.C. §112. Accordingly, the court entered judgment invalidating the challenged claims of the '881 patent in addition to finding the earlier patents invalid under Section 101.

Disposition. Having determined that the asserted claims of the ’834 and ’810 patents were directed to patent-ineligible subject matter, that the defendant's experimental irrigation systems did not infringe the asserted claims, and that the challenged claims of the ’881 patent were indefinite, the court granted both the defendant's motion for summary judgment and its supplemental motion for summary judgment.

The Case is No. 1:19-cv-01482-JLT-EGC.

Judge: Thurston, J.

Attorneys: Brenda Helen Entzminger (Bunsow De Mory LLP) for Vineyard Investigations. Shane Garrett Smith (McCormick Barstow LLP) for E. & J. Gallo Winery.

Companies: Vineyard Investigations, E. & J. Gallo Winery

MainStory: TopStory Patent CaliforniaNews