Patents
US 8777935 B2: Optical sensor and method for identifying the presence of skin
- Granted
- 2014-07-15
- Filed
- 2008-08-18 application 12193544
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A sensor for detecting the presence of skin is disclosed, one configuration of which uses multiple light emitting diodes, each of a unique wavelength band, and a broad-band photodetector to measure the remission of light at multiple wavelengths from a material being analyzed. Characteristics of the spectral remission of the material are used to discriminate human skin from materials that are not human skin. Further, an aesthetic medical device utilizing such a sensor in which the device is inhibited from operation if skin has not been detected. The incorporation of a skin sensor improves the safety of devices that emit radiation that otherwise would pose a hazard if not directed onto skin.
Source: PVGPATDIS, file of 2026-04-10 (ipg140715.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| TRIA BEAUTY, INC. 24 patents | US company or organization | Pleasanton, CA | TRIA BEAUTY, INC. State business registration EXACT high confidence: identical full name and state TRIA Beauty, Inc. Form D issuer EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Mark V. Weckwerth | Pleasanton, CA | 33 | PVGPATDIS, file of 2026-04-10 | |
| Tobin C. Island | Oakland, CA | 18 | PVGPATDIS, file of 2026-04-10 | |
| Robert E. Grove | Pleasanton, CA | 15 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| A61B | Diagnosis; surgery; identification | A61B18/203 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2025-10-20 | Correction Corrective assignment to correct the patent number for one patent identified in the deed of assignment. one patent on the top of page 3 was identified incorrectly (the correct patent number is 9687671, not 9687651). the amended deed of assignment corrects this error. also attached to this corrective assignment is the previously recorded cover sheet containing the error, previously recorded on reel 72121 frame 256. assignor(s) hereby confirms the assignment of assignor's interest. | CHANNEL INVESTMENTS, LLC signed 2025-05-09 | AESTHETE HOLDING CORPORATION WILMINGTON, DE | 73686/429 | PASDL, file of 2026-10-15 |
| 2025-08-26 | Assignment Assignment of assignor's interest | CHANNEL INVESTMENTS, LLC signed 2025-05-09 | AESTHETE HOLDING CORPORATION WILMINGTON, DE | 72121/256 | PASDL, file of 2026-10-15 |
| 2017-05-03 | Assignment Assignment of assignor's interest | TRIA BEAUTY, INC. signed 2017-04-11 | CHANNEL INVESTMENTS, LLC TAMPA, FL | 42229/195 | PASDL, file of 2026-10-15 |
| 2013-07-03 | Security interest Security interest Notice of grant of security interest | TRIA BEAUTY, INC. signed 2013-07-02 | ATHYRIUM OPPORTUNITIES FUND (A) LP NEW YORK, NY | 30740/215 | PASDL, file of 2026-10-15 |
| 2009-01-28 | Assignment Assignment of assignor's interest | ISLAND, TOBIN C. signed 2008-10-02 WECKWERTH, MARK V. signed 2008-10-02 GROVE, ROBERT E. signed 2008-10-06 | TRIA BEAUTY, INC. PLEASANTON, CA | 22169/698 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.