Invalidity dossier
US 6119935
Shopping cart mounted portable data collection device with tethered dataform reader
Current assignee: Symbol Technologies LLC
Added 9/24/2026, 12:08:59 AM
Active provider: DeepSeek · deepseek-flash
Patent summary
Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.
Patent Overview — US 6,119,935 A
Title: "Shopping cart mounted portable data collection device with tethered dataform reader"
Bibliographic data (from supplied text):
- Patent number: US 6,119,935 A
- Application number: US 08/770,690
- Inventors: William M. Jelen; Timothy P. O'Hagan
- Original assignee: Telxon Corp; current assignee listed as Symbol Technologies LLC (with Bank One Corp also listed)
- Prior art date (stated as an assumption): 1996-06-26; priority claimed from US 08/668,343 and US 08/744,109
- Filing date: 1996-12-19
- Publication/grant date: 2000-09-19
- Anticipated expiration: 2016-06-26; legal status: "Expired - Lifetime"
- Classifications include B62B3/1416 (display devices mounted on shopping trolley handles), G06K7/0004 (hybrid readers), G06K17/0022 (transferring data to distant stations)
Purpose and plain-language scope: Based only on the title, classification entries, and prior-art keywords visible in the excerpt ("data," "shopping list," "product," "list information," "product data"), the patent concerns a portable data collection unit that mounts on a shopping cart and includes a dataform reader connected by a tether. The classifications suggest a handle-mounted electronic display for a shopping trolley, a hybrid record-carrier reader, general memory-record-carrier reading issues, and data transfer to distant stations. Beyond these headings, the excerpt does not describe the invention's elements, operation, or the subject matter of any claim.
What the excerpt does not establish:
- The text of any claim, the invention's detailed description, or the drawings (image placeholders appear but contain no readable content).
- The identity or teachings of any cited prior art.
- Ownership history, litigation, validity, or enforceability. (The reassignment entries are recorded transactions only; per the excerpt, legal status is an unverified assumption.)
- Whether the listed "current assignee" entries are accurate — the source says listed assignees "may be inaccurate."
Generated 10/1/2026, 9:32:01 PM
Cases on file (0)
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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.