Assignee
NAT GYPSUM CO
153 granted patents·6,116 citations·filing 1971–1999
Top patents by PatentIndex Score
153 records- 0197US4428775AReinforced cement sheet product containing no asbestos for fabricating on hatschek machineNAT GYPSUM CO·Filed 1981·Granted Jan 31, 1984·157 cites·67 claims
- 0296US4689930APartition structureNAT GYPSUM CO·Filed 1986·Granted Sep 1, 1987·118 cites·4 claims
- 0395US5858083ACementitious gypsum-containing binders and compositions and materials made therefromNAT GYPSUM CO·Filed 1997·Granted Jan 12, 1999·154 cites·52 claims
- 0495US5779786AReady mixed setting-type joint compound, and method of making sameNAT GYPSUM CO·Filed 1997·Granted Jul 14, 1998·162 cites·21 claims
- 0595US5464302AExtendible interconnected C-studsNAT GYPSUM CO·Filed 1993·Granted Nov 7, 1995·110 cites·13 claims
- 0695US4704837AWall constructionNAT GYPSUM CO·Filed 1986·Granted Nov 10, 1987·90 cites·12 claims
- 0794US5653797AReady mixed setting-type joint compound and method of making sameNAT GYPSUM CO·Filed 1996·Granted Aug 5, 1997·125 cites·27 claims
- 0894US5390458AWallboard protective edge tape for mounting boardNAT GYPSUM CO·Filed 1993·Granted Feb 21, 1995·84 cites·18 claims
- 0994US3954555AFiber reinforced plastic articles and method of preparationNAT GYPSUM CO·Filed 1974·Granted May 4, 1976·74 cites·20 claims
- 1093US5718759ACementitious gypsum-containing compositions and materials made therefromNAT GYPSUM CO·Filed 1996·Granted Feb 17, 1998·104 cites·20 claims
- 1193US5718797AApparatus for manufacturing gypsum boardNAT GYPSUM CO·Filed 1996·Granted Feb 17, 1998·92 cites·13 claims
- 1293US4646498ACurtain wall panel and methodNAT GYPSUM CO·Filed 1985·Granted Mar 3, 1987·123 cites·6 claims
- 1393US4578915AExterior wallNAT GYPSUM CO·Filed 1984·Granted Apr 1, 1986·97 cites·10 claims
- 1492US4455271AFoamed gypsum wallboardNAT GYPSUM CO·Filed 1983·Granted Jun 19, 1984·59 cites·8 claims
- 1591US6187409B1Cementitious panel with reinforced edgesNAT GYPSUM CO·Filed 1998·Granted Feb 13, 2001·120 cites·31 claims
- 1691US4930287ADistortion-free vinyl sidingNAT GYPSUM CO·Filed 1986·Granted Jun 5, 1990·87 cites·4 claims
- 1791US4364212AFire-resistant metal studNAT GYPSUM CO·Filed 1977·Granted Dec 21, 1982·85 cites·14 claims
- 1891US4019920AGypsum set acceleratorNAT GYPSUM CO·Filed 1975·Granted Apr 26, 1977·60 cites·2 claims
- 1990US5079884AExtendible interconnected Z-studsNAT GYPSUM CO·Filed 1990·Granted Jan 14, 1992·80 cites·14 claims
- 2090US4435936AMetal studNAT GYPSUM CO·Filed 1982·Granted Mar 13, 1984·77 cites·10 claims
- 2190US4327146AHigh density interface gypsum board and method for making sameNAT GYPSUM CO·Filed 1980·Granted Apr 27, 1982·100 cites·7 claims
- 2290US4065333AFacing sheet edge trimmingNAT GYPSUM CO·Filed 1977·Granted Dec 27, 1977·61 cites·5 claims
- 2389US4377415AReinforced cement sheet product containing wollastonite for reduced shrinkageNAT GYPSUM CO·Filed 1981·Granted Mar 22, 1983·50 cites·21 claims
- 2489US4305901AWet extrusion of reinforced thermoplasticNAT GYPSUM CO·Filed 1977·Granted Dec 15, 1981·78 cites·10 claims
- 2588US5879446AGypsum wallboard, and method of making sameNAT GYPSUM CO·Filed 1998·Granted Mar 9, 1999·65 cites·20 claims
- 2688US5879486AMethods of manufacturing gypsum board and board made therefromNAT GYPSUM CO·Filed 1997·Granted Mar 9, 1999·55 cites·9 claims
- 2788US4845904AC-stud and wedged bracketNAT GYPSUM CO·Filed 1988·Granted Jul 11, 1989·66 cites·7 claims
- 2888US3984269AAccelerated drywall joint treatmentNAT GYPSUM CO·Filed 1974·Granted Oct 5, 1976·50 cites·1 claims
- 2987US4747240AEncapsulated PCM aggregateNAT GYPSUM CO·Filed 1981·Granted May 31, 1988·97 cites·14 claims
- 3087US4693047ABendable channel retainerNAT GYPSUM CO·Filed 1986·Granted Sep 15, 1987·62 cites·16 claims
- 3187US4624087ADrywall exterior corner beadNAT GYPSUM CO·Filed 1984·Granted Nov 25, 1986·66 cites·10 claims
- 3287US4564544AFire-resistant gypsum boardNAT GYPSUM CO·Filed 1983·Granted Jan 14, 1986·59 cites·2 claims
- 3387US4324082AMetal studNAT GYPSUM CO·Filed 1979·Granted Apr 13, 1982·87 cites·10 claims
- 3487US3964220AControl joint with tear stripNAT GYPSUM CO·Filed 1972·Granted Jun 22, 1976·58 cites·1 claims
- 3586US5358757AWallboard bundling tape and methodNAT GYPSUM CO·Filed 1993·Granted Oct 25, 1994·87 cites·10 claims
- 3686US4901485AAcoustical panelNAT GYPSUM CO·Filed 1989·Granted Feb 20, 1990·69 cites·16 claims
- 3786US4719730AAcoustical tack boardNAT GYPSUM CO·Filed 1986·Granted Jan 19, 1988·63 cites·20 claims
- 3886US4279673AHard-edge wallboardNAT GYPSUM CO·Filed 1980·Granted Jul 21, 1981·69 cites·5 claims
- 3985US5879825AGypsum wallboard and method of making sameNAT GYPSUM CO·Filed 1997·Granted Mar 9, 1999·55 cites·34 claims
- 4085US4948647AGypsum backer boardNAT GYPSUM CO·Filed 1989·Granted Aug 14, 1990·56 cites·18 claims
- 4185US4725477APredecorated gypsum boardNAT GYPSUM CO·Filed 1985·Granted Feb 16, 1988·51 cites·16 claims
- 4285US4363666AReinforced cement sheet product containing fibers other than asbestos, clay and thickenerNAT GYPSUM CO·Filed 1981·Granted Dec 14, 1982·41 cites·28 claims
- 4385US4052149AContinuous calcinerNAT GYPSUM CO·Filed 1976·Granted Oct 4, 1977·17 cites·5 claims
- 4484US5685903ACementitious gypsum-containing compositions and materials made therefromNAT GYPSUM CO·Filed 1996·Granted Nov 11, 1997·110 cites·24 claims
- 4584US4782638AHurricane protector clipsNAT GYPSUM CO·Filed 1986·Granted Nov 8, 1988·72 cites·2 claims
- 4683US4152873ABonded two piece metal studNAT GYPSUM CO·Filed 1977·Granted May 8, 1979·46 cites·5 claims
- 4783US4101630AContinuous calcining of gypsumNAT GYPSUM CO·Filed 1977·Granted Jul 18, 1978·16 cites·5 claims
- 4883US4057443AFoamed gypsum wallboardNAT GYPSUM CO·Filed 1976·Granted Nov 8, 1977·61 cites·5 claims
- 4982US4579610AMethod of making predecorated gypsum boardNAT GYPSUM CO·Filed 1984·Granted Apr 1, 1986·39 cites·8 claims
- 5082US4354885AHard-edge wallboardNAT GYPSUM CO·Filed 1981·Granted Oct 19, 1982·42 cites·9 claims
Showing the top 50 of 153 patent records by PatentIndex Score.
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