Inventor
Leo Berger
Inventor
Montclair, NJ, US
Overview
Patents· 30 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Dprimary
C07DHeterocyclic compounds47%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations14%
B01DSeparation14%
D21JFibreboard7%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%
A61KPreparations for medical, dental or toiletry purposes2%
A63FCard, board, or roulette games2%
B63BShips or other waterborne vessels2%
C07CAcyclic or carbocyclic compounds2%
F42BExplosive charges, e.g. for blasting, fireworks, ammunition2%
PatentTitleYear
10,240,907Bullet cartridge and case testing device20195,022,654'Liquid filled device for playing a game of chance'19914,972,788'Aquatic vehicle'19904,732,902'Pyrroloisoquinolinyl-dimethyloxoalkyl alkonoates and their use as antipsychotic agents'19884,707,484'Substituted piperidinomethylindolone and cyclopent(b)indolone derivatives'19874,610,989'Analgesic composition containing a mixture of 6-chloro-.alpha.-methyl-carbazole-2-acetic acid plus an opiate as the active agent'19864,493,717'In-line disposable filter'19854,442,291'1,2,3,4,4a,7-Hexahydro-6,8-dimethoxy-2-methyl isoquinoline'19844,388,467'Cycloalka[4,5]pyrrolo[2,3-g]isoquinolines'19834,349,678'Octahydro-2-methyl-isoquinoline-6,8-dione'19824,334,078'Dibenzothiophenes'19824,334,070'Cycloalka[4,5]pyrrolo[2,3-g]isoquinolines'19824,260,762'Octahydro-1H-pyrrolo[2,3-g]isoquinolines'19814,256,474'Filter housing and filter assemblies utilizing the same'19814,234,487'Process of making a carbazole acetic acid'19804,222,944'Halo-3-dibenzofuran alkanonitriles'19804,219,657'Dibenzothiophenes'19804,192,809'Certain 8-halodibenzofuran-3-alkanols'19804,179,443'6-Chloro-1,2,3,4-tetrahydrocarbazole-2-one'19794,178,289'Carbazole acetic acid derivatives'19794,160,684'Method of manufacturing a coalescing demister'19794,150,031'Hydroxy methyl carbazole acetic acid and esters'19794,146,542'Dihydrocarbazole acetic acid and esters thereof'19794,124,360'Coalescing demister'19784,097,497'Amides of 2-(3-dibenzofuran) alkanoic acids'19784,078,965'Composite coalescing filter tube and method of manufacture thereof'19784,052,316'Composite coalescing filter tube'19774,022,805'8-Halo-dibenzofuran-3-acetic acids and certain esters thereof'19774,009,181'Cyclopenta[b]indole-2-carboxylic acids and derivatives thereof'19773,931,288'Alkyl esters of 4-chlorophenoxy-4-oxo-cycloalkyl-carboxylic acid'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1988Patents assigned to HOFFMANN LA ROCHE (21)· patent assignee history
1976–1988Based in Montclair, NJ, US· patent location history
1977–1981Patents assigned to FINITE FILTER CO (5)· patent assignee history
1977–1985Based in Birmingham, MI, US· patent location history
1985Patents assigned to BERGER JR L JOSEPH (1)· patent assignee history
1990Patents assigned to BERGER LEO (1)· patent assignee history
1990–1991Based in Zurich, CH· patent location history
2019Patents assigned to AUSKUR FIREARMS AND MUNITIONS INC (1)· patent assignee history
2019Based in Nampa, ID, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HOFFMANN LA ROCHE | 21 | 1976–1988 |
| FINITE FILTER CO | 5 | 1977–1981 |
| AUSKUR FIREARMS AND MUNITIONS INC | 1 | 2019 |
| BERGER JR L JOSEPHself | 1 | 1985 |
| BERGER LEOself | 1 | 1990 |
Locations
| Location | Patents | Span |
|---|---|---|
| Montclair, New Jersey, US | 21 | 1976–1988 |
| Birmingham, MI, US | 6 | 1977–1985 |
| Zurich, CH | 2 | 1990–1991 |
| Nampa, ID, US | 1 | 2019 |