Goetz E. Hardtmann
47Patents
7h-index
13Co-inventors
62Inventor score
Filing activity: Nov 6, 1972 → Mar 10, 1988
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4119720A | Unsaturated esters of 4-hydroxy-2-quinolinone-3-carboxylic acids and salts thereof | Chemistry; Metallurgy | 18 | Expired |
| US3984556A | Alkyl-substituted-tricyclic quinazolinones for lowering blood pressure | Human Necessities | 12 | Expired |
| US4190659A | Pharmaceutical preparation and use of 4-hydroxy-2-quinolinone-3-carboxylic acid esters | Chemistry; Metallurgy | 11 | Expired |
| US4128649A | 4-Hydroxy-pyrido[2,3-b]pyridine-2(1H)-one-3-carboxylic acids and esters | Chemistry; Metallurgy | 10 | Expired |
| US4870199A | Processes for the synthesis of diprotected R[R*,S*]-3,5-dihydroxy-6-oxohexanoate esters | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4160032A | Oxindoles as sleep-inducers | Chemistry; Metallurgy | 8 | Expired |
| US4124587A | 4-Hydroxy-3-sulfinyl-quinolin-2(1H)-ones | Chemistry; Metallurgy | 8 | Expired |
| US4053600A | Tricyclic 1,2,4-triazolo-quinazolines | Chemistry; Metallurgy | 7 | Expired |
| US3963720A | Tetracyclic imidazo [2,1-b] quinazolinone derivatives | Chemistry; Metallurgy | 6 | Expired |
| US4264602A | 4-Hydroxy-3-nitro-pyrido[2,3-B]pyridine-2(1H)-ones | Chemistry; Metallurgy | 6 | Expired |
| US3937705A | 1-Isopropyl-7-methyl-4-(p-fluorophenyl)-2(1H)-quinazolinone | Chemistry; Metallurgy | 5 | Expired |
| US4192876A | 4-Hydroxy-3-nitro-quinoline-2(1H)-ones | Chemistry; Metallurgy | 5 | Expired |
| US4127574A | 4-Hydroxy-3-sulfonyl-quinolin-2(1H)-ones | Chemistry; Metallurgy | 5 | Expired |
| US4187309A | 4-Hydroxy-2-quinolinone-3-carboxylic acids and salts thereof | Human Necessities | 5 | Expired |
| US3931183A | 1-Substituted-2-disubstitutedamino-pyrido[2,3-D]pyrimidin-4(1H)-ones | Chemistry; Metallurgy | 4 | Expired |
| US4117137A | 2-Amino-pyridyl nitromethylketones and 2-amino-phenyl nitromethylketones | Chemistry; Metallurgy | 3 | Expired |
| US4015005A | 1,2,5,6-Tetrahydro-4H-pyrrolo(3,2,1-j)quinolin-2-ones | Chemistry; Metallurgy | 3 | Expired |
| US3982000A | Alkyl-substituted-tricyclic quinazolinones as bronchodilators | Human Necessities | 3 | Expired |
| US4032528A | 1,4-Substituted-quinolin-2(1H)-ones as CNS agents | Chemistry; Metallurgy | 3 | Expired |
| US3983242A | 3-Alkylsulfinyl-2-indolinones and their pharmaceutical compositions and use | Chemistry; Metallurgy | 2 | Expired |
| US4221797A | Dihydroquinoline-one derivatives | Chemistry; Metallurgy | 2 | Expired |
| US4070468A | 2-Amino-quinolin-4-one-3-phosphonic acid esters | Chemistry; Metallurgy | 2 | Expired |
| US4013646A | 1-(.omega.-HALOALKYL)-ISATOIC ANHYDRIDES | Chemistry; Metallurgy | 2 | Expired |
| US3969506A | Pharmacologically active tricyclic quinazolinones | Chemistry; Metallurgy | 2 | Expired |
| US3936453A | 1-Substituted-2-disubstituted aminoquin azolin-4(1h)-ones | Chemistry; Metallurgy | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.