| Patents for C07C 309 - Sulfonic acids; Halides, esters, or anhydrides thereof (15,484) | 
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| 05/02/1978 | US4087549 Antiinflammatory, antipyretic, analgesic | 
| 05/02/1978 | US4087548 Naphthalene trisulfonic acids | 
| 05/02/1978 | US4087456 Purification of oleophilic hydrocarbon sulfonate product mixtures | 
| 04/25/1978 | US4086256 Process for sulfonation | 
| 04/18/1978 | US4085137 For making polyurethanes with low temperature stability and solvent resistance | 
| 04/18/1978 | US4085136 Adrenergic blocking agents | 
| 04/11/1978 | US4083863 Process for the preparation of cyclopropane carboxylic acids and esters | 
| 03/28/1978 | US4081466 Catalytic reaction of hexafluoropropylene epoxide with a ketone or acid fluoride | 
| 03/21/1978 | US4080372 Continuous process for bleaching acid alpha-sulfo-fatty acid esters | 
| 03/14/1978 | USRE29576 Sulfosuccinate derivatives as detergent builders | 
| 02/14/1978 | US4074060 Auramine salts | 
| 02/14/1978 | US4073802 Process for the preparation and purification of 3-(4-lithiosulfophenoxy)-1,2-propanediol | 
| 02/07/1978 | USRE29534 Purification of perfluorosulfonyl fluoride perfluorovinyl ethers by thermal decomposition of unstable isomers | 
| 01/31/1978 | US4071547 3-Bromo-2,2-bis(bromomethyl)propyl bromomethanesulfonate | 
| 01/31/1978 | US4071543 Process for the preparation of acyltaurides | 
| 01/31/1978 | US4071476 Detergent builders and composition containing the same | 
| 01/24/1978 | US4070456 Compositions containing dioctyl calcium sulfosuccinate | 
| 01/24/1978 | US4070396 Sulfite ion catalysis of bisulfite addition to higher molecular weight detergent range olefins | 
| 01/24/1978 | US4070395 Process for the preparation of 4,4'-diaminostilbene-2,2'-disulfonic acid or its salts | 
| 01/17/1978 | US4069249 N,N-di-(hydroxybenzyl)-trimethylene diaminediacetic acids | 
| 01/03/1978 | US4066696 Aromatic amidines as antiviral agents in animals | 
| 12/27/1977 | US4065584 Sulphur containing arylamine derivatives | 
| 12/27/1977 | US4065572 Amino acids and esters thereof useful as antihypertensive agents | 
| 12/27/1977 | US4065492 Process for preparing aminonaphthalene derivatives in a titanium or titanium alloy reactor | 
| 12/06/1977 | US4061669 From an amine and alkali metal p-styrenesulfonate | 
| 11/29/1977 | US4060549 Amine, ammonium or phosphonium catalyst | 
| 11/22/1977 | US4059620 Process for preparing olefin sulfonates | 
| 11/22/1977 | US4059611 Oxidative process for the preparation of 2-(5H-dibenzo[a,d]cyclohepten-5-on-2-yl)acetic, propionic and butyric acid | 
| 11/08/1977 | US4057686 Sulphonic acid salts of S-adenosilmethionine | 
| 11/08/1977 | US4057419 2,4-Bis-(trifluoromethyl)-6-nitrophenol compounds and herbicidal compositions | 
| 11/01/1977 | US4056564 Polyester and polyurethane monomers | 
| 11/01/1977 | US4056558 Sulfosuccinates of polyhydroxy tertiary amines as new detergent-softener compounds | 
| 10/18/1977 | US4054669 Phenolic menthene derivatives, therapeutic composition containing same and their use as therapeutic compositions | 
| 10/11/1977 | US4053430 Oxalic acid esters | 
| 10/04/1977 | US4052431 Process for the production of commercial alpha olefin sulfonates | 
| 09/27/1977 | US4051176 Ureidophenylenebis(carbonylimino)dinaphthalenetrisulfonic acid compounds | 
| 09/27/1977 | US4051168 To form fluoroalkyl aromatic compounds | 
| 09/27/1977 | US4051144 Sinister-3,5-disubstituted oxozolidines their preparation and use | 
| 09/27/1977 | US4051047 Group II metal mixed salts of two different organic acids in lubricant | 
| 09/20/1977 | US4049705 Useful for preparation of naphthoquinone miticides | 
| 09/20/1977 | US4049703 Process for the production of purified camphorsulfonic acid salts | 
| 09/20/1977 | US4049608 Sulfonic acid surfactant addition polymer | 
| 09/13/1977 | US4048221 Diols containing sulphonic acid groups based on dihydroxy alkenes | 
| 09/06/1977 | US4046914 Antibiotics, antitumor agents | 
| 09/06/1977 | US4046805 Substituted-hydroxy-naphthalenedisulfonic acid compounds | 
| 08/23/1977 | US4044147 N-(acyl)-p-amino-N'-(monosubstituted)-benzamide anti-ulcer agents | 
| 08/23/1977 | US4044040 Hypertensive agents | 
| 08/16/1977 | US4042635 Spiro compounds | 
| 08/02/1977 | US4039562 Maleic anhydride, fatty alcohol, alkali metal sulfite | 
| 08/02/1977 | US4039464 Detergent builders and compositions containing the same | 
| 07/26/1977 | US4038328 Process for preparing 2-nitro-4,6-dichloro-5-methylphenol | 
| 07/26/1977 | US4038245 Char-forming polymer compositions | 
| 07/19/1977 | US4036875 Sulfur trioxide | 
| 07/19/1977 | US4036838 Process for the production of nitro derivatives of aromatic compounds | 
| 07/19/1977 | US4036596 Annular feeder | 
| 07/12/1977 | US4035506 Fluorocarbon dermal protective compositions | 
| 07/12/1977 | US4035413 Aliphatically substituted aryl-chalcoge-no-hydrocarbon derivatives | 
| 07/12/1977 | US4035242 Distillative purification of alkane sulfonic acids | 
| 06/21/1977 | US4031240 Hypocholesterolemic, hypotriglycidemic, hypolipidemic | 
| 06/21/1977 | US4031125 3-Sulfonate ester of 2,3-dihydroxypropylamine | 
| 06/14/1977 | US4029640 Process for producing ammonium aromatic sulfonate | 
| 05/31/1977 | US4027038 Complement inhibitors | 
| 05/31/1977 | US4026940 Cleaving tert-butyl ester with strong acid | 
| 05/31/1977 | US4026926 Complex of sulfur trioxide with a secondary amide | 
| 05/24/1977 | US4025555 Aromatic amidines as antiviral agents in animals | 
| 05/24/1977 | US4025544 O-alkylsulfonylglycolic anilides | 
| 05/24/1977 | US4025542 Novel ethers, their preparation and use as oxydimethylating agents | 
| 05/24/1977 | US4025535 Sulfoalkylated flavanone sweeteners | 
| 05/17/1977 | US4024119 Polysulfone resins containing bibenzyl sulfone repeating units | 
| 05/10/1977 | US4022795 Method for dehalogenating aromatic compounds | 
| 05/03/1977 | US4021460 Sodium-calcium-ferric-aluminum-ammonium sulfates with fatty acid esters | 
| 05/03/1977 | US4021455 Sulfonating anthraquinone in mercury | 
| 03/29/1977 | US4014946 Synthesis of 1-bromonon-4-en-6-yne | 
| 03/29/1977 | US4014931 From aziridine and sulfuryl halide | 
| 03/29/1977 | US4014644 Tolane compounds | 
| 03/22/1977 | US4013776 Phenylsulphinyl-amidine derivatives | 
| 03/22/1977 | US4013719 Antilipemic, antiallergen | 
| 03/22/1977 | US4013708 Arylchalcogeno-substituted aliphatic acids and esters | 
| 03/22/1977 | US4013621 Oxidation resistance | 
| 03/15/1977 | US4012441 Sulphonic derivatives having the structure of polyoxapolyfluoroalkanes | 
| 02/22/1977 | US4009191 Bromoethyl diester of sulfoacetic acid | 
| 02/22/1977 | US4009190 Protects corn from herbicides | 
| 02/01/1977 | US4006111 Production of alkane: olefin sulfonate mixtures by sequential sulfonation and sulfitation | 
| 01/25/1977 | US4005138 Process for the manufacture of sulphonic acid fluorides | 
| 01/25/1977 | US4004939 Stabilizing paper coatings | 
| 01/18/1977 | US4003925 Solvent extraction with propanol, butanol, isopropanol, or isobutanol | 
| 01/18/1977 | US4003878 Method of preparing an alkali-metal salt of an alkoxysulfonated benzoic acid glycol ester | 
| 01/11/1977 | US4002733 Water resistance | 
| 01/04/1977 | US4001087 Affinity labelling enzymes with esters of aromatic sulfonic acids | 
| 12/28/1976 | US4000183 Antiallergens and hypolipidaemic agents | 
| 12/28/1976 | US4000144 Hypolipidaemic agents and antiallergens | 
| 12/28/1976 | US4000049 Method and device for preparing sulphonic acids derived from paraffinic hydrocarbons | 
| 12/21/1976 | US3998972 Diphenyl derivatives | 
| 12/14/1976 | US3997603 Herbicidal halo-di-alkyl benzenesulfonamides | 
| 12/14/1976 | US3997576 Method for preparation of α-sulfofatty acid ester | 
| 12/14/1976 | US3997575 Bleaching method for sulfonic acid | 
| 12/07/1976 | US3996278 Diuretic, saluretic, secretolytic | 
| 11/30/1976 | US3994966 Substituted ethylenedinitrilotetraacetic acids | 
| 11/30/1976 | US3994963 Schaeffer salt purification | 
| 11/30/1976 | US3994896 Moth sex pheromone |