Van Dyk & Company Inc.
9Patents
0Active
9Granted
25Portfolio score
Filing activity: Sep 16, 1975 → Jun 21, 1985
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4012398A | Quaternary halides of mink oil amides | Human Necessities | 18 | Expired |
| US4457911A | Dialkyl malonates as organic sunscreen adjuvants | Human Necessities | 17 | Expired |
| US4038294A | Fatty halo alkanoate quaternaries of dialkylaminopropylamides | Human Necessities | 12 | Expired |
| US4613499A | Substituted cinnamal dialkyl malonates in sunscreening, skin care compositions | Human Necessities | 9 | Expired |
| US4515774A | Liquid, cinnamal dialkyl malonates as sole organic sunscreens | Human Necessities | 8 | Expired |
| US4342706A | Benzene sulfonate quaternary ammonium salts | Chemistry; Metallurgy | 8 | Expired |
| US4026818A | Transparent ringing gels | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4333920A | Benzalphthalides and broad spectrum sun screens | Human Necessities | 4 | Expired |
| US4078054A | Sun screen compositions of unsaturated esters of p-dimethylaminobenzoic acid | Human Necessities | 3 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.