Inventor
Daniel L. Kessler
Inventor
Dallas, TX, US
Overview
Patents· 18 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Nprimary
G01NInvestigating or analysing materials by determining their chemical or physical properties32%
LOC1516%
LOC1012%
G01MTesting static or dynamic balance of machines or structures8%
B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers4%
G02BOptical elements, systems or apparatus4%
G02CSpectacles4%
G06TImage data processing or generation, in general4%
G10LSpeech analysis techniques or speech synthesis4%
H04NPictorial communication, e.g. television4%
PatentTitleYear
10,591,747Contact lens inspection method and system2020D0857535Grip for a gem tester201910,352,868Grading lamp for gemstones2019D0823368Magnifying device201810,001,466Magnifying device for jewelry and system for use of same2018D0810368'Jewelry cleaning applicator'20189,874,491Cuvette system and methods for the inspection of ophthalmic lenses2018D0798172'Grading lamp'2017D0796749'Ultrasonic cleaner'2017D0771881'Jewelry cleaner'20169,395,350'Gem tester'20169,285,357'Gem tester'20169,134,263'Gem tester'2015D0731328'Desktop apparatus for testing precious metal'20158,749,253'Gem tester'20148,564,316'Gem tester'2013D0643163'Jewelry cleaner'2011D0634271'Charging stand for instruments for testing the authenticity of diamonds and moissanite'2011Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2011–2019Patents assigned to SY KESSLER SALES INC (16)· patent assignee history
2011–2019Based in Dallas, TX, US· patent location history
2013Patents assigned to KESSLER DANIEL L (1)· patent assignee history
2013Patents assigned to KESSLER HENRY M (1)· patent assignee history
2018–2020Patents assigned to NOVARTIS AG (2)· patent assignee history
2018Based in Lützelhausen, DE· patent location history
2020Patents assigned to ALCON INC (1)· patent assignee history
2020Based in Grosswallstadt, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SY KESSLER SALES INC | 16 | 2011–2019 |
| NOVARTIS AG | 2 | 2018–2020 |
| ALCON INC | 1 | 2020 |
| KESSLER DANIEL Lself | 1 | 2013 |
| KESSLER HENRY M | 1 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Dallas, Texas, US | 16 | 2011–2019 |
| Grosswallstadt, DE | 1 | 2020 |
| Lützelhausen, DE | 1 | 2018 |