Invalidity dossier

US 8144183

Two-way audio-video communication method for receiving person at entrance

Current assignee: SB IP Holdings, LLC

Added 9/23/2026, 10:13:34 PM

At a glanceNo PTAB challenges1 lawsuit on fileasserted by SB IP Holdings, LLC

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: US8144183B2

Title: Two-way audio-video communication method for receiving person at entrance

Patent number: US8144183B2 | Application: US11/618,618 | Filing date: 2006-12-29 | Publication date: 2012-03-27 | Priority date: 2002-10-15 | Adjusted expiration: 2027-07-24 | Status: Active – Reinstated

Inventor: Ronald Carter

Assignees (as listed): Original assignee Revolutionary Concepts Inc; current assignee SB IP Holdings LLC. The source page also lists reassignments to EYETALK365, LLC; SkyBell Technologies, Inc.; ALARM.COM INCORPORATED; and STAR MOUNTAIN DIVERSIFIED CREDIT INCOME FUND III, LP. (These are recorded as stated; no analysis is made here.)

Classifications: H04N7/14, H04N7/141, H04N7/142 (two-way video), H04N7/18, H04N7/183, H04N7/186 (CCTV; video door telephones), H04M11/00, H04M11/02, H04M11/025 (door telephones).

Purpose and plain-language scope: The invention concerns an audio-video communication system for receiving a person at an entrance, such as a home or business. Per the supplied definitions, the system comprises a wireless exterior module located near an entrance, a computerized controller running a software application, and a remote peripheral device. The exterior module includes a proximity sensor to detect a person, a video camera to record the person's image, a microphone for sound, a speaker for playing audio to the person, plus a transmitter and receiver. The controller communicates wirelessly with the exterior module, controls recording and playback of communications, and its software application provides a graphic user interface for viewing camera images. The remote peripheral device communicates with the controller to view images from the video camera. The system may further include a second wireless exterior module near an entrance with the same component set, with which the controller also communicates wirelessly.

Source: https://patents.google.com/patent/[US8144183](/patent/US8144183)/en

What the excerpt does not establish: The excerpt is explicitly partial ("consult the source for omitted text"), so the full claims, dependent claims, specification details, drawings, and prosecution history are not established. It also does not establish litigation outcomes, validity, prior-art effect, or the legal accuracy of the listed assignments and status. The text stops mid-sentence regarding the remote peripheral device, so that element's complete function is not established.

Generated 10/1/2026, 9:33:41 PM

Cases on file (1)

Group view →

Specific litigation cases in our database that name US patent 8144183. The free-form analysis below may also discuss cases beyond this list.

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.

Current assignee: SB IP Holdings, LLC

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.

Keep exploring

More patents asserted by SB IP Holdings, LLC

This patent in court (1)

1 tracked lawsuit name US 8144183.