Inventor

NELSON NORMAN A

128 patents

⚠️ This page may combine multiple inventors who share the name “NELSON NORMAN A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NELSON NORMAN A

UPJOHN CO

2-Decarboxy-2-hydroxymethyl-ω-phenoxy-PGD analogs

Inter-phenylene CBA compounds

15-Methyl- and 16-phenoxy-PGF2 α, amides

2-Decarboxy-2-hydroxy-methyl-5-oxa-17-phenyl-18,19,20-trinor-PGF-analogs

16-Phenoxy prostaglandin F2α analogs

15-Epi-15-methyl-16-phenoxy-PGE compounds

11-Deoxy-cis-4,5-didehydro-ω-aryl-PGE compounds

2-Decarboxy-2-carboxyamino-methyl-PGFα compounds

16-Phenoxy prostaglandin E1 analogs

16-Phenoxy prostaglandin F1α analogs

2-Decarboxy-2-hydroxymethyl-cis-4,5-didehydro-PGE, compounds

5-Oxa prostaglandin F2.sub.α analogs

Pyridinyl substituted benzimidazoles and quinoxalines

Bicyclo lactone intermediates for prostaglandin analogs

2-Decarboxy-2-hydroxymethyl-deoxy-9,10-didehydro-PGD2 analogs

11-Deoxy-cis-4,5-didehydro-ω-aryl-PGF compounds

11-Deoxy-2,2-difluoro-ω-aryl-PGE compounds

Certain 5,6-dihydra-prostacyclin analogs

2-Decarboxy-2-amino-methyl-PGE and PGD analogs

6α-Methoxy-4α-hydroxy-2β-hydroxymethyl-3.alpha.-tetrahydropyranacetic acid 4α γ-lactone ethers and acylates

4α,6-Dihydroxy-2β-carboxaldehyde-3α-tetrahydropyranacetic acid γ-lactone, 6-alkyl ethers

3-Oxa prostaglandin E-type compounds

3-Oxa prostaglandin Fα-type compounds

PGE2 -oxa-phenylene compounds

PGE1 -oxa phenylene compounds

Oxa-phenylene compounds

PGEo oxa-phenylene compounds

4,5,6-Trinor-3,7,-inter-m-phenylene prostaglandin A1 analogs

11-Deoxy-16-phenoxy-PGF compounds

2-Decarboxy-2-hydroxymethyl-17-phenyl-11-deoxy-PGF1 analogs

2-Decarboxy-2-hydroxy-methyl-5-oxa-ω-phenyl-pgd1 compounds

2-Decarboxy-2-hydroxy-methyl-ω-phenoxy-PGE analogs

2-Decarboxy-2-hydroxy-methyl-ω-phenoxy-PGA or 9-deoxy-9,10-didehydro-PGD analogs

2-Decarboxy-2-hydroxymethyl-5-oxa-ω-phenoxy-PGA1 or 9-deoxy-9,10-didehydro-PGD1 compounds

2-Decarboxy-2-hydroxymethyl-3,7-inter-m-phenylene-.omega.-phenyl-PGA1 or 9-deoxy-9,10-didehydro-PGD1 compounds

2-Decarboxy-2-hydroxy-methyl-3,7-inter-m-phenylene-ω-phenoxy-PGF.sub.1

2-Decarboxy-2-hydroxymethyl-ω-phenyl-PGE analogs

2-Decarboxy-2-hydroxymethyl-5-oxa-ω-phenyl-PGA1 or 9-deoxy-9,10-didehydro-PGD1 compounds

2-Decarboxy-2-hydroxymethyl-3,7-inter-m-phenylene-ω-phenoxy-PGA11 compounds

Composition and process 2-decarboxy-2-hydroxy-methyl-5-oxa-ω-phenyl-PGE1 compounds

2-Decarboxy-2-hydroxymethyl-3,7-inter-m-phenylene-ω-phenyl-PGD1 compounds

2-Decarboxy-2-hydroxy-methyl-5-oxa-ω-phenoxy-PGD1 compounds

NELSON NORMAN A

Wellhead connector

System for connecting an underwater platform to an underwater floor

Lockdown mechanism for wellhead connector

Modular underwater well platform system

NL INDUSTRIES INC

Blowout preventer having a variable ram seal

Valve assembly, seat and seal

Valve assembly and seat

PUTCH SAMUEL

Well casing hanger assembly