diff --git a/api/s11_patterns.py b/api/s11_patterns.py
index 7ed913f..f354537 100644
--- a/api/s11_patterns.py
+++ b/api/s11_patterns.py
@@ -144,7 +144,6 @@ def inp_out_pattern(name: str) -> list[str]:
 #   id  time1  factor1  time2  factor2  ...
 #--------------------------------------------------------------
 def inp_in_pattern_v3(section: list[str]) -> ChangeSet:
-    descs = {}
     patterns: dict[str, list[float]] = {}
 
     variable_patterns: list[str] = []
@@ -152,11 +151,6 @@ def inp_in_pattern_v3(section: list[str]) -> ChangeSet:
     count = len(section)
     for i in range(0, count):
         if section[i].startswith(';'):
-            # this is description
-            next = i + 1
-            if next < count and section[next].startswith(';') == False:
-                next_tokens = section[next].split()
-                descs[next_tokens[0]] = section[i].removeprefix(';')
             continue
 
         tokens = section[i].split()
@@ -186,4 +180,15 @@ def inp_in_pattern_v3(section: list[str]) -> ChangeSet:
 
 
 def inp_out_pattern_v3(name: str) -> list[str]:
-    return []
+    lines = []
+    objs = read_all(name, f"select * from patterns order by _order")
+    ids = []
+    for obj in objs:
+        id = obj['id']
+        if id not in ids:
+            # for EPA3, ignore time of variable pattern...
+            lines.append(f'{id} FIXED')
+            ids.append(id)
+        factor = obj['factor']
+        lines.append(f'{id} {factor}')
+    return lines