David M. Walba
33Patents
12h-index
18Co-inventors
78Inventor score
Filing activity: Jul 18, 1984 → Feb 11, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6139771A | Mesogenic materials with anomalous birefringence dispersion and high second order susceptibility (X.sup.(2)). | Chemistry; Metallurgy | 47 | Expired |
| US4556727A | Ferroelectric smectic liquid crystals | Chemistry; Metallurgy | 40 | Expired |
| US5596434A | Self-assembled monolayers for liquid crystal alignment | Physics | 39 | Expired |
| US4695650A | Liquid crystal compounds and compositions containing same | Chemistry; Metallurgy | 31 | Expired |
| US5138010A | Fast switching polysiloxane ferroelectric liquid crystals | Chemistry; Metallurgy | 30 | Expired |
| US4638073A | Synthesis of new liquid crystal materials possessing phenylbenzoate or biphenyl core units and (2,3)-epoxyalkyloxiranemethanol chiral tails | Chemistry; Metallurgy | 25 | Expired |
| US5168381A | Smectic liquid crystal devices using SSFLC and electroclinic effect based cells | Physics | 21 | Expired |
| US5543078A | Ferroelectric liquid crystals for nonlinear optics applications | Physics | 17 | Expired |
| US5051506A | Ferroelectric liquid crystal compounds containing chiral haloalkyoxy tail units and compositions containing them | Chemistry; Metallurgy | 16 | Expired |
| US5167855A | Ferroelectric liquid crystal compositions chiral haloalkoxy tail units | Chemistry; Metallurgy | 16 | Expired |
| US5130048A | Ferroelectric liquid crystal compositions containing chiral haloalkoxy tails units | Chemistry; Metallurgy | 13 | Expired |
| US5180520A | Ferroelectric liquid crystal compositions containing halogenated cores and chiral halogenated cores and chiral haloalkoxy tail units | Chemistry; Metallurgy | 12 | Expired |
| US4777280A | Phenylbenzoate 1-cyanoalkoxy compounds | Chemistry; Metallurgy | 12 | Expired |
| US5637256A | Ferroelectric liquid crystals for nonlinear optics applications | Physics | 12 | Expired |
| US5380460A | Ferroelectric liquid crystal compounds containing chiral haloalkoxy tail units and compositions containing them | Chemistry; Metallurgy | 11 | Expired |
| US5658493A | Ferroelectric liquid crystals for nonlinear optics applications | Physics | 11 | Expired |
| US4835295A | Ferroelectric liquid crystal compounds and compositions | Chemistry; Metallurgy | 8 | Expired |
| US5061814A | High tilt ferroelectric liquid crystal compounds and compositions | Chemistry; Metallurgy | 8 | Expired |
| US5178793A | Ferroelectric liquid crystal compounds and compositions | Chemistry; Metallurgy | 7 | Expired |
| US5866036A | High tilt ferroelectric liquid crystal compounds and compositions | Chemistry; Metallurgy | 7 | Expired |
| US5422037A | Ferroelectric liquid crystal compounds containing halogenated cores and chiral haloalkoxy tail units | Chemistry; Metallurgy | 7 | Expired |
| US4705874A | Synthesis of new liquid crystal materials possessing phenylbenzoate or biphenyl core units and (2,3)-epoxyalkyloxiranemethanol chiral tails | Chemistry; Metallurgy | 5 | Expired |
| US5145601A | Ferroelectric liquid crystals with nicotinic acid cores | Chemistry; Metallurgy | 2 | Expired |
| US6870163B1 | Ferroelectric liquid crystal devices using materials with a de Vries smectic A phase | Physics | 2 | Expired |
| US4789751A | Synthesis of new liquid crystal materials possessing phenylbenzoate or biphenyl core units and (2,3)-epoalkyloxirane methanol chiral tails | Chemistry; Metallurgy | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.