Inventor

Alfred Lipp

Inventor

Bad Schoenborn, DE

Overview

1976–1990

Patent span

Chemistry

Primary field (CPC C)

Patents· 24 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C04Bprimary

C04BLime, magnesia61%

B22FWorking metallic powder6%

C23CCoating metallic material6%

G21FProtection against x-radiation, gamma radiation, corpuscular radiation or particle bombardment6%

B22DCasting of metals3%

C01BNon-metallic elements3%

C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds3%

C22FChanging the physical structure of non-ferrous metals and non-ferrous alloys3%

G01KMeasuring temperature3%

Y10TTechnical subjects covered by former us classification3%

PatentTitleYear

4,908,173'Process for preparation of dense molded bodies of polycrystalline aluminum nitride without use of sintering aids'1990 4,885,264'Pressure-sintered polycpystalline mixed materials with a base of hexagonal boron nitride, oxides and carbides'1989 4,814,301'Polycrystalline sintered articles based on silicon nitride and sintering additives'1989 4,803,183'Dense molded bodies of polycrystalline aluminum nitride and process for preparation without use of sintering aids'1989 4,743,571'Polycrystalline sintered bodies on a base of silicon nitride with high fracture toughness and hardness'1988 4,732,620'Thermoelement comprising a graphite/boron carbide thermocouple'1988 4,687,655'Process for the manufacture of shaped articles from reaction-bonded silicon nitride by nitridation under elevated nitrogen gas pressure'1987 4,684,480'Ceramic bonded neutron absorber plates of boron carbide and free carbon'1987 4,661,740'Polycrystalline sintered bodies based on lanthanum hexaboride, and a process for their manufacture'1987 4,634,640'Dense shaped articles consisting of polycrystalline hexagonal boron nitride and process for their manufacture by isostatic hot-pressing'1987 4,614,724'Polycrystalline sintered compacts based on europium hexaboride and process for their manufacture'1986 4,564,601'Shaped polycrystalline silicon carbide articles and isostatic hot-pressing process'1986 4,560,668'Substantially pore-free shaped articles of polycrystalline silicon carbide, and a process for their manufacture by isostatic hot-pressing'1985 4,528,120'Refractory, electrically conductive, mixed materials containing boron nitride and process for their manufacture'1985 4,495,123'Dense shaped articles consisting of polycrystalline hexagonal boron nitride and process for their manufacture by isostatic hot pressing'1985 4,467,043'Dense shaped articles of polycrystalline .alpha.-silicon carbide and process for the manufacture thereof by hot-pressing'1984 4,381,931'Process for the manufacture of substantially pore-free shaped polycrystalline articles by isostatic hot-pressing in glass casings'1983 4,351,858'Process for the manufacture of substantially pore-free shaped polycrystalline articles by isostatic hot-pressing'1982 4,326,039'Dense shaped articles of polycrystalline .beta.-silicon carbide and process for the manufacture thereof by hot-pressing'1982 4,252,691'Neutron absorber based on boron carbide and carbon and a process for their production'1981 4,230,497'Dense sintered shaped articles of polycrystalline .alpha.-silicon carbide and process for their manufacture'1980 4,118,256'Process for the production of oxygen-free copper casting and moldings'1978 4,107,276'Manufacture of hexagonal boron nitride'1978 3,936,327'Boriding composition'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1989Patents assigned to KEMPTEN ELEKTROSCHMELZ GMBH (22)· patent assignee history

1976–1989Based in Bad Schoenborn, DE· patent location history

1990Patents assigned to GRELLNER WOLFGANG (1)· patent assignee history

1990Patents assigned to HUNOLD KLAUS (1)· patent assignee history

1990Patents assigned to LIPP ALFRED (1)· patent assignee history

1990Patents assigned to MOHR MAX (1)· patent assignee history

1990Based in Worishofen, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
KEMPTEN ELEKTROSCHMELZ GMBH	22	1976–1989
GRELLNER WOLFGANG	1	1990
HUNOLD KLAUS	1	1990
LIPP ALFREDself	1	1990
MOHR MAX	1	1990

Locations

Location	Patents	Span
Bad Schoenborn, DE	23	1976–1989
Worishofen, DE	1	1990