Invalidity dossier

US 7515708

Privacy case for telephones

Current assignee: Individual

Added 9/17/2026, 2:24:10 PM

At a glanceNo PTAB challengesNo litigation on file

Active provider: DeepSeek · deepseek-flash

Patent summary

Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.

✓ Generated

Patent Overview — US 7515708 B1

Title: Privacy case for telephones

Patent number / application: US 7515708 B1; Application US10/767,643

Inventors: Arthur F. Doty, III; Robert M. Turkewitz

Assignee: Individual (original assignee). The record also lists a 2010-03-17 assignment to Turkewitz, Robert M., with Doty, Arthur F., III as assignor. No other ownership information is supplied.

Key dates: Priority/filing date 2004-01-29; publication/grant date 2009-04-07; adjusted expiration 2026-06-29; status listed as "Expired – Fee Related."

Purpose: The case is a telephone container with privacy features for cellular, cordless, and corded phones. When in its position of use, it covers the user's mouth and muffles and/or blocks the user's voice beyond the case sufficiently that a conversation is unintelligible to persons in the vicinity — meaning those beyond roughly three to five feet — at least when the user speaks in a normal voice.

Plain-language scope: The case comprises a pocket with a bottom wall, opposing sidewalls, and mouth and ear end walls. The sidewalls extend beyond the phone's ends; the end walls connect to them beyond those ends. The walls rise from the bottom wall so their distal edges form an opening rim beyond the exposed phone face, extending from ear to mouth and around the mouth so the mouth is hidden. The rim may curve to follow the ear-to-mouth facial contour. Side and end walls are preferably flexible, sound-absorbing material so the rim conforms to varied faces and forms a substantial sound seal. The ear end wall may extend over or behind the ear lobe to reduce external noise. Retaining means may include a strap or open mesh net; the case may be foldable and collapsible, with pleats, lips, flaps, tabs, and snap or hook-and-loop fasteners. An aperture may admit a corded phone's cord.

Source: https://patents.google.com/patent/US7515708/en

What the excerpt does not establish: It is a partial excerpt. It does not provide the full specification, all claims, the drawings, the complete list of cited prior art, prosecution history, or litigation. The legal status, expiration, and assignee entries are expressly disclaimed by the source as assumptions or non-legal conclusions. Independent verification of dates, claim scope, and ownership would require the full patent document and official records, which are not included here.

Generated 10/1/2026, 10:03:06 PM

Cases on file (0)

Specific litigation cases in our database that name US patent 7515708. The free-form analysis below may also discuss cases beyond this list.

No cases on file mention this patent. Upload a CSV or add a case manually in Admin → Manage litigation cases.

Litigation summary

Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.

Log in to generate
Not generated yet. Log in to request this analysis.

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.

Log in to generate
Not generated yet. Log in to request this analysis.

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.

Log in to generate
Not generated yet. Log in to request this analysis.

Prior art

Earlier patents, publications, and products that may anticipate or render the claims unpatentable.

Log in to generate
Not generated yet. Log in to request this analysis.

Obviousness

Combinations of prior art that suggest the claimed invention would have been obvious under 35 U.S.C. § 103.

Log in to generate
Not generated yet. Log in to request this analysis.

Extensions

Patent term adjustments, term extensions, continuations, divisionals, family members, and expiration dates.

Log in to generate
Not generated yet. Log in to request this analysis.

Derivative works

Defensive disclosure: derivative variations of each claim designed to render future incremental improvements obvious or non-novel.

Log in to generate
Not generated yet. Log in to request this analysis.