Inventor
Hans-Martin Ringelstein
Inventor
Frankfurt am Main, DE
Overview
Patents· 11 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A61Kprimary
A61KPreparations for medical, dental or toiletry purposes23%
C22CAlloys12%
Y10TTechnical subjects covered by former us classification12%
B22FWorking metallic powder8%
C23CCoating metallic material8%
H01JElectric discharge tubes or discharge lamps8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
A61CDentistry4%
B05CApparatus for applying fluent materials to surfaces, in general4%
B23KSoldering or unsoldering4%
PatentTitleYear
9,659,762'Amalgam balls having an alloy coating'20179,263,245'Amalgam balls having an alloy coating'20167,297,178'Method and device for producing spherical metal particles'20075,833,462'Precision attachments for dental technology capable of being cast on'19985,695,714'Gold-palladium alloys for dental materials'19975,547,625'Method of producing flexible plastic bands compounded with hard-material powders and/or soldering powders'19964,963,184'Tooth filling material and method of its preparation'19904,892,582'Dental filling-material and method for its preparation'19904,634,383'Process and apparatus for the production of fillings in teeth'19874,610,631'Process for the production of fillings for teeth'19864,187,956'Safety insert for storage vessels of low-boiling liquified gases'1980Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1980Patents assigned to MESSER GRIESHEIM GMBH (1)· patent assignee history
1980–2017Based in Frankfurt am Main, DE· patent location history
1986–1998Patents assigned to DEGUSSA (7)· patent assignee history
2007–2017Patents assigned to UMICORE AG & CO KG (3)· patent assignee history
2016Patents assigned to HUTIN OLIVIER (1)· patent assignee history
2016Patents assigned to RINGELSTEIN HANS MARTIN (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DEGUSSA | 7 | 1986–1998 |
| UMICORE AG & CO KG | 3 | 2007–2017 |
| HUTIN OLIVIER | 1 | 2016 |
| MESSER GRIESHEIM GMBH | 1 | 1980 |
| RINGELSTEIN HANS MARTINself | 1 | 2016 |
Locations
| Location | Patents | Span |
|---|---|---|
| Frankfurt am Main, DE | 11 | 1980–2017 |