Invalidity dossier
US 10844697
Perforation gun components and system
Current assignee: DynaEnergetics GmbH and Co KG
Added 9/23/2026, 6:11:11 PM
Active provider: DeepSeek · deepseek-flash
Patent summary
Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.
Patent Overview: US10844697B2 — "Perforation gun components and system"
Source: https://patents.google.com/patent/[US10844697](/patent/US10844697)/en
Bibliographic data (as supplied): US Patent 10844697 B2, application US16/585,790, filed 2019-09-27, granted/publication date 2020-11-24. Priority date listed as 2013-07-18 (claimed from CA2821506A). Inventors: Frank Haron Preiss, Liam Mcnelis, Eric Mulhern, Thilo Scharf, and David C. Parks. Original assignee DynaEnergetics GmbH & Co KG; current assignee listed as DynaEnergetics GmbH and Co KG. Legal status shown as "Expired – Fee Related," with anticipated expiration 2034-07-16 (stated as an assumption, not a legal conclusion).
Purpose and plain-language scope: Based on the supplied excerpt, the patent concerns components and a system for perforation guns. The prior-art keywords listed—pin, electrical connection, detonator, contact pin, and pressure bulkhead—indicate the disclosed subject matter centers on electrical connections and pressure-isolating structures used with detonators in perforation gun assemblies. In plain terms, it appears directed to how detonators are electrically contacted (e.g., via pins) and how such connections are passed through or sealed against pressure within a gun system.
Family/related filings noted: US20200032626A1 (other version); later applications claiming priority to this family include US16/809,729 (US11608720B2), US17/007,574 (US11542792B2), US17/221,219 (US11788389B2), US17/223,899 (US12215576B2), US17/352,728 (US11661823B2), US17/875,585 (US12078038B2), and US18/790,983 (US20240392662A1).
What this excerpt does not establish: The supplied text contains no abstract, no claims, no detailed description, and no drawings. It therefore does not establish the actual claimed scope, the specific technical embodiments, the field's problem statement, or any prior-art references relied upon. The litigation listings, assignment records, and legal-status/expiration data in the excerpt are flagged by the source itself as assumptions or third-party data and cannot be verified from this text; they are also outside the requested scope. Any characterization of the invention beyond the listed keywords is inference, not confirmed disclosure.
Generated 10/1/2026, 9:42:58 PM
Cases on file (0)
Specific litigation cases in our database that name US patent 10844697. The free-form analysis below may also discuss cases beyond this list.
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Litigation summary
Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.
Proceedings on file (0)
All PTAB activity →AIA trial proceedings (IPR / PGR / CBM) filed at the USPTO Patent Trial and Appeal Board against this patent. Sourced from the USPTO Open Data Portal and refreshed every six hours; each proceeding number deep-links to the PTAB E2E docket.
No PTAB proceedings on file. This patent has not been challenged via IPR, PGR, or CBM. The absence is itself a signal — well-asserted patents eventually attract IPRs. The LLM analysis below may surface filings the ODP feed hasn’t indexed yet.
PTAB challenges
AIA trial proceedings at the USPTO Patent Trial and Appeal Board — IPR, PGR, and CBM. Petitioners, judge panels, claim-level invalidation outcomes from Final Written Decisions, and Federal Circuit appeals. The single most important defensive datapoint after litigation history.
Assignment history
Inventors, original assignee, and the chain of ownership recorded with the USPTO — including the correspondent attorney who recorded each assignment, since shell-LLC chains often share one repeat-player attorney even when the entity names look unrelated. Surfaces NPE / patent-troll patterns: shell-entity transfers, known asserters in the chain, repeat correspondent fingerprints, pre-litigation assignments, and bankruptcy fire-sales.
Prior art
Earlier patents, publications, and products that may anticipate or render the claims unpatentable.
Obviousness
Combinations of prior art that suggest the claimed invention would have been obvious under 35 U.S.C. § 103.
Extensions
Patent term adjustments, term extensions, continuations, divisionals, family members, and expiration dates.
Derivative works
Defensive disclosure: derivative variations of each claim designed to render future incremental improvements obvious or non-novel.