PCR, Inc.
35Patents
0Active
35Granted
37Portfolio score
Filing activity: Oct 4, 1971 → May 29, 1998
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4729481A | Apparatus for advancing shelved goods | Human Necessities | 183 | Expired |
| US4877654A | Buffered silane emulsions for rendering porous substrates water repellent | Emerging Cross-Sectional Technologies | 55 | Expired |
| US4889747A | Hydrophobic expanded perlite compositions and process for preparing the same | Emerging Cross-Sectional Technologies | 39 | Expired |
| US4828751A | Solvent composition for cleaning silicon wafers | Chemistry; Metallurgy | 31 | Expired |
| US4990377A | Buffered silane emulsions having low volatile organic compounds when cured | Emerging Cross-Sectional Technologies | 31 | Expired |
| US4210638A | Antiviral composition and method of treating virus diseases | Chemistry; Metallurgy | 22 | Expired |
| US4775725A | Silane modified polymers | Chemistry; Metallurgy | 21 | Expired |
| US5892084A | Aminoorganofunctionalsiloxanes | Chemistry; Metallurgy | 19 | Expired |
| US5154845A | Fluorine containing lubricating composition for relatively moving metal surfaces | Chemistry; Metallurgy | 15 | Expired |
| US3954758A | Process for fluorinating uracil and derivatives thereof | Chemistry; Metallurgy | 10 | Expired |
| US5075351A | Silane compositions for reinforcement of polyolefins | Chemistry; Metallurgy | 10 | Expired |
| US5037873A | Water-repellent silane emulsions comprising copolymers of acrylic acid and alkyl methacrylates | Chemistry; Metallurgy | 9 | Expired |
| US5914420A | Perfluorinated organo substituted cyylosiloxanes and copolymers prepared from these cyclosiloxahes | Chemistry; Metallurgy | 8 | Expired |
| US4975509A | Silane compositions for reinforcement of polyolefins | Chemistry; Metallurgy | 8 | Expired |
| US4738892A | Silica filler for epoxy encapsulants and epoxy encapsulants containing same | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5932231A | High purity branched alkylsilsesquioxane fluids | Chemistry; Metallurgy | 6 | Expired |
| US5104447A | Oxyaluminum acylate containing emulsion compositions and use | Chemistry; Metallurgy | 6 | Expired |
| US5466850A | Process for the preparation of fluorosilanes | Chemistry; Metallurgy | 5 | Expired |
| US4024143A | Silylation of 5-fluoro-6-hydroxy or alkoxy pyrimidine | Chemistry; Metallurgy | 4 | Expired |
| US4814407A | Composition for waterproofing silica-ceramic insulation bodies | Chemistry; Metallurgy | 4 | Expired |
| US4029661A | Process for producing 5-fluorouracil and derivatives thereof in acid and/or alcohol solvents | Chemistry; Metallurgy | 4 | Expired |
| US5847179A | High purity alkoxytrimethylsilane fluids | Chemistry; Metallurgy | 4 | Expired |
| US4299961A | 2,4,5 Trifluoro pyrimidine and process for preparing | Chemistry; Metallurgy | 3 | Expired |
| US5679822A | High purity branched phenylsiloxane fluids | Chemistry; Metallurgy | 3 | Expired |
| US5177275A | Reaction of substrate compounds with fluorine in an eductor | Chemistry; Metallurgy | 3 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.